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Open Sound System
The Hitchhiker's Guide to OSS 4.1 Internals

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oss_hdaudio/hdaudio_codec.c

Codec handling for Intel High Definition Audio (HDA/Azalia).

Description




This file is part of Open Sound System.

Copyright (C) 4Front Technologies 1996-2008.

This this source file is released under GPL v2 license (no other versions). See the COPYING file included in the main directory of this source distribution for the license terms and conditions.


#include "oss_hdaudio_cfg.h"
#include "hdaudio.h"
#include "hdaudio_codec.h"
#include "hdaudio_codecids.h"

extern int hdaudio_snoopy;
extern int hdaudio_jacksense;
extern int hdaudio_noskip;

static codec_t NULL_codec = { 0 };	/* TODO: Temporary workaround - to be removed */


/* Si3055 functions (implemented in hdaudio_si3055.c) */
extern void hdaudio_si3055_endpoint_init(hdaudio_mixer_t *mixer, int cad);
extern void hdaudio_si3055_set_rate(hdaudio_mixer_t *mixer, int cad, int rate);
extern int hdaudio_si3055_set_offhook(hdaudio_mixer_t *mixer, int cad, int offhook);


static int attach_codec (hdaudio_mixer_t * mixer, int cad, char *hw_info,
		      unsigned int pci_subdevice, int group_type);
int
hdaudio_mixer_get_outendpoints (hdaudio_mixer_t * mixer,
				hdaudio_endpointinfo_t ** endpoints, int size)
{
  int i;

  if (size != sizeof (hdaudio_endpointinfo_t))
    {
      cmn_err (CE_WARN, "Bad endpoint size\n");
      return OSS_EIO;
    }

  *endpoints = (hdaudio_endpointinfo_t *) & mixer->outendpoints;

  for (i = 0; i < mixer->num_outendpoints; i++)
    {
      hdaudio_endpointinfo_t *ep = *endpoints + i;

      ep->skip = mixer->codecs[ep->cad]->widgets[ep->base_wid].skip;

      if (hdaudio_snoopy)
         {
	     char *s = ep->name + strlen(ep->name);
	     sprintf(s, ":%d:%d", ep->cad, ep->base_wid);
	 }
    }
  return mixer->num_outendpoints;
}

int
hdaudio_mixer_get_inendpoints (hdaudio_mixer_t * mixer,
			       hdaudio_endpointinfo_t ** endpoints, int size)
{
  int i;

  if (size != sizeof (hdaudio_endpointinfo_t))
    {
      cmn_err (CE_WARN, "Bad endpoint size\n");
      return OSS_EIO;
    }

  *endpoints = (hdaudio_endpointinfo_t *) & mixer->inendpoints;

  for (i = 0; i < mixer->num_inendpoints; i++)
    {
      hdaudio_endpointinfo_t *ep = *endpoints + i;

      ep->skip = mixer->codecs[ep->cad]->widgets[ep->base_wid].skip;

      if (hdaudio_snoopy)
         {
	     char *s = ep->name + strlen(ep->name);
	     sprintf(s, ":%d:%d", ep->cad, ep->base_wid);
	 }
    }
  return mixer->num_inendpoints;
}

/*ARGSUSED*/
static int
hda_mixer_ioctl (int dev, int audiodev, unsigned int cmd, ioctl_arg arg)
{
  if (cmd == SOUND_MIXER_READ_DEVMASK ||
      cmd == SOUND_MIXER_READ_RECMASK || cmd == SOUND_MIXER_READ_RECSRC ||
      cmd == SOUND_MIXER_READ_STEREODEVS)
    return *arg = 0;

  return OSS_EINVAL;
}

static mixer_driver_t hda_mixer_driver = {
  hda_mixer_ioctl
};


static void
propagate_names (hdaudio_mixer_t * mixer)
{
  int c, w;
  int i;

Check if the same name can be used for all the widgets on an unique path.


  for (i = 0; i < 20; i++)
    for (c = 0; c < mixer->ncodecs; c++)
      if (mixer->codecs[c] != &NULL_codec)
	{
	  for (w = 1; w < mixer->codecs[c]->nwidgets; w++)
	    {
	      widget_t *widget = &mixer->codecs[c]->widgets[w];
	      widget_t *src_widget =
		&mixer->codecs[c]->widgets[widget->connections[0]];

	      if (widget->nconn != 1)
		continue;

#if 0
	      if (src_widget->wid_type == NT_PIN
		  || src_widget->wid_type == NT_DAC)
		continue;

	      if (src_widget->wid_type != NT_MIXER && src_widget->wid_type != NT_VENDOR)	/* Mixer */
		continue;
#endif

	      strcpy (widget->name, src_widget->name);


Copy widget's RGB color to all widgets in the path

	      if (widget->rgbcolor == 0)
		 widget->rgbcolor = src_widget->rgbcolor;
	    }
	}
#if 0
  // Debugging code
    for (c = 0; c < mixer->ncodecs; c++)
    if (mixer->codecs[c] != &NULL_codec)
    for (w = 1; w < mixer->codecs[c]->nwidgets; w++)
    {
	      widget_t *widget = &mixer->codecs[c]->widgets[w];

	      cmn_err(CE_CONT, "w= %02x rgb=%06x: %s (%s)\n", w, widget->rgbcolor, widget->name, widget->color);
    }
#endif
}

static void
check_names (hdaudio_mixer_t * mixer)
{
  int c, c2, w, w2;
  int n, start;


Make sure all widgets have unique names.

  for (c = 0; c < mixer->ncodecs; c++)
    if (mixer->codecs[c] != &NULL_codec)
      {
	for (w = 1; w < mixer->codecs[c]->nwidgets; w++)
	  {
	    char tmp[16];
	    n = 0;
	    if (mixer->codecs[c]->widgets[w].skip)	/* Not available */
	      continue;

	    strcpy (tmp, mixer->codecs[c]->widgets[w].name);

	    start = w + 1;

	    for (c2 = c; c2 < mixer->ncodecs; c2++)
	      {
		for (w2 = start; w2 < mixer->codecs[c2]->nwidgets; w2++)
		  {
		    if (mixer->codecs[c2]->widgets[w2].skip)	/* Not available */
		      continue;

		    if (strcmp (tmp, mixer->codecs[c2]->widgets[w2].name) ==
			0)
		      n++;
		  }

		start = 1;
	      }

	    if (n > 0)		/* Duplicates found */
	      {
		n = 0;
		start = w;
		for (c2 = c; c2 < mixer->ncodecs; c2++)
		  {
		    for (w2 = start; w2 < mixer->codecs[c2]->nwidgets; w2++)
		      {
			if (mixer->codecs[c2]->widgets[w2].skip)	/* Not available */
			  continue;

			if (strcmp (tmp, mixer->codecs[c2]->widgets[w2].name)
			    == 0)
			  {
			    n++;
			    sprintf (mixer->codecs[c2]->widgets[w2].name,
				     "%s%d", tmp, n);
			  }
		      }

		    start = 1;
		  }
	      }
	  }
      }
}

int
hdaudio_amp_maxval (unsigned int ampcaps)
{
  int step, range, maxval;

  range = ((ampcaps >> AMPCAP_NUMSTEPS_SHIFT) & AMPCAP_NUMSTEPS_MASK) + 1;
  step = ((ampcaps >> AMPCAP_STEPSIZE_SHIFT) & AMPCAP_STEPSIZE_MASK) + 1;

  maxval = range * step * 25;	/* Now in 0.01 dB steps */
  maxval = (maxval / 10) - 1;	/* Truncate to centibel (0.1 dB) scaling */

  return maxval;
}

static int
scaleout_vol (int v, unsigned int ampcaps)
{
  int step, range, maxval;

  range = ((ampcaps >> AMPCAP_NUMSTEPS_SHIFT) & AMPCAP_NUMSTEPS_MASK) + 1;
  step = ((ampcaps >> AMPCAP_STEPSIZE_SHIFT) & AMPCAP_STEPSIZE_MASK) + 1;

  maxval = range * step * 25;	/* Now in 0.01 dB steps */
  maxval = (maxval / 10) - 1;	/* Truncate to centibel (0.1 dB) scaling */
  if (v > maxval)
    v = maxval;

  v *= 10;			/* centibels -> millibels */

  v = (v + (25 * step) / 2) / (25 * step);

  if (v > 0x7f || v >= range)
    {
      v = range - 1;
    }

  if (v < 0)
    v = 0;
  return v;
}

static int
scalein_vol (int v, unsigned int ampcaps)
{
  int step, range, maxval;

  range = ((ampcaps >> AMPCAP_NUMSTEPS_SHIFT) & AMPCAP_NUMSTEPS_MASK) + 1;
  step = ((ampcaps >> AMPCAP_STEPSIZE_SHIFT) & AMPCAP_STEPSIZE_MASK) + 1;

  maxval = range * step * 25;	/* Now in 0.01 dB steps */
  maxval = (maxval / 10) - 1;	/* Truncate to centibel (0.1 dB) scaling */

  v *= step * 25;		/* Convert to millibels */

  v = v / 10 - 1;		/* millibels -> centibels */

  if (v > maxval)
    {
      v = maxval;
    }
  if (v < 0)
    v = 0;

  return v;
}

static int
handle_insrcselect (hdaudio_mixer_t * mixer, widget_t * widget, int value)
{

Emulated (recording) source selection based on input amp mute controls.

Mute all inputs other than the selected one.

  int i;

  widget->current_selector = value;

  for (i = 0; i < widget->nconn; i++)
    {
      int v = (i == value) ? 0 : 0x80;

      corb_write (mixer, widget->cad, widget->wid, 0,
		  SET_GAIN (0, 1, 1, 1, i), v);
    }

  return value;
}

int
hdaudio_set_control (int dev, int ctrl, unsigned int cmd, int value)
{
  hdaudio_mixer_t *mixer = mixer_devs[dev]->devc;

  unsigned int cad, wid, linked_wid, typ, ix, left, right, a, b, v;
  widget_t *widget;

  ix = ctrl & 0xff;
  typ = (ctrl >> 8) & 0xff;
  wid = (ctrl >> 16) & 0xff;
  cad = (ctrl >> 24) & 0xff;

  if (cad >= mixer->ncodecs)
    return OSS_EIO;

  if (wid >= mixer->codecs[cad]->nwidgets)
    return OSS_EIO;

  widget = &mixer->codecs[cad]->widgets[wid];

  if (mixer->codecs[cad]->vendor_flags & VF_VAIO_HACK)
    linked_wid = (wid == 0x02) ? 0x05 : ((wid == 0x05) ? 0x02 : 0);
  else
    linked_wid = 0;

  if (cmd == SNDCTL_MIX_READ)
    switch (typ)
      {
      case CT_INGAINSEL:
	if (!corb_read (mixer, cad, wid, 0, GET_GAIN (0, 0), ix, &a, &b))
	  return OSS_EIO;
	return a & 0x7f;	// TODO: Handle mute
	break;

      case CT_INMONO:
	if (!corb_read (mixer, cad, wid, 0, GET_GAIN (0, 0), ix, &a, &b))
	  return OSS_EIO;
	if (a & 0x80)
	  left = 0;
	else
	  left = scalein_vol (a, widget->inamp_caps);
	return left | (left << 16);
	break;

      case CT_INSTEREO:
	if (!corb_read (mixer, cad, wid, 0, GET_GAIN (0, 1), ix, &a, &b))
	  return OSS_EIO;
	if (a & 0x80)
	  left = 0;
	else
	  left = scalein_vol (a, widget->inamp_caps);
	if (!corb_read (mixer, cad, wid, 0, GET_GAIN (0, 0), ix, &a, &b))
	  return OSS_EIO;
	if (a & 0x80)
	  right = 0;
	else
	  right = scalein_vol (a, widget->inamp_caps);
	return left | (right << 16);
	break;

      case CT_INMUTE:
	if (!corb_read (mixer, cad, wid, 0, GET_GAIN (0, 0), ix, &a, &b))
	  return OSS_EIO;
	return (a >> 7) & 0x01;
	break;

      case CT_INSRC:		/* Inverse mute */
	if (!corb_read (mixer, cad, wid, 0, GET_GAIN (0, 0), ix, &a, &b))
	  return OSS_EIO;
	return !((a >> 7) & 0x01);
	break;

      case CT_SELECT:
	return widget->current_selector;
	break;

      case CT_INSRCSELECT:	/* Emulated selector based on input mute controls */
	return widget->current_selector;

      case CT_OUTGAINSEL:
	if (!corb_read (mixer, cad, wid, 0, GET_GAIN (1, 1), 0, &a, &b))
	  return OSS_EIO;
	return a;		// TODO: Handle mute
	break;

      case CT_OUTMONO:
	if (!corb_read (mixer, cad, wid, 0, GET_GAIN (1, 1), 0, &a, &b))
	  return OSS_EIO;
	left = a & 0x7f;
	if (a & 0x80)
	  left = 0;
	else
	  left = scalein_vol (a, widget->outamp_caps);
	return left | (left << 16);
	break;

      case CT_OUTSTEREO:
	if (!corb_read (mixer, cad, wid, 0, GET_GAIN (1, 1), 0, &a, &b))
	  return OSS_EIO;
	left = a & 0x7f;
	if (a & 0x80)
	  left = 0;
	else
	  left = scalein_vol (a, widget->outamp_caps);
	if (!corb_read (mixer, cad, wid, 0, GET_GAIN (1, 0), 0, &a, &b))
	  return OSS_EIO;
	right = a & 0x7f;
	if (a & 0x80)
	  right = 0;
	else
	  right = scalein_vol (a, widget->outamp_caps);
	return left | (right << 16);
	break;

      case CT_OUTMUTE:
	if (!corb_read (mixer, cad, wid, 0, GET_GAIN (1, 0), 0, &a, &b))
	  return OSS_EIO;
	return (a >> 7) & 0x01;
	break;

      default:
	return OSS_EINVAL;
      }

  if (cmd == SNDCTL_MIX_WRITE)
    {
      switch (typ)
	{
	case CT_INMONO:
	  v = (value & 0xffff);
	  if (v == 0)
	    v = 0x80;		/* Muted */
	  else
	    v = scaleout_vol (v, widget->inamp_caps);

	  corb_write (mixer, cad, wid, 0, SET_GAIN (0, 1, 1, 1, ix), v);
	  return value;
	  break;

	case CT_INSTEREO:
	  v = (value & 0xffff);
	  if (v == 0)
	    v = 0x80;		/* Muted */
	  else
	    v = scaleout_vol (v, widget->inamp_caps);

	  corb_write (mixer, cad, wid, 0, SET_GAIN (0, 1, 1, 0, ix), v);
	  v = ((value >> 16) & 0xffff);
	  if (v == 0)
	    v = 0x80;		/* Muted */
	  else
	    v = scaleout_vol (v, widget->inamp_caps);
	  corb_write (mixer, cad, wid, 0, SET_GAIN (0, 1, 0, 1, ix), v);
	  return value;
	  break;

	case CT_INGAINSEL:
	  v = (value & 0x7f);
	  // TODO: Handle mute
	  corb_write (mixer, cad, wid, 0, SET_GAIN (0, 1, 1, 0, ix), v);
	  corb_write (mixer, cad, wid, 0, SET_GAIN (0, 1, 0, 1, ix), v);
	  return value;
	  break;

	case CT_INMUTE:
	  v = 0;
	  if (value)
	    v = 0x80;
	  corb_write (mixer, cad, wid, 0, SET_GAIN (0, 1, 1, 1, ix), v);
	  return value;
	  break;

	case CT_INSRC:		/* Inverse mute */
	  v = 0;
	  if (!value)
	    v = 0x80;
	  corb_write (mixer, cad, wid, 0, SET_GAIN (0, 1, 1, 1, ix), v);
	  return value;
	  break;

	case CT_SELECT:
	  if (value < 0)
	    value = 0;
	  widget->current_selector = value;

	  if (value < widget->nconn)
	    {
	      /* Output source select */
	      corb_write (mixer, cad, wid, 0, SET_SELECTOR, value);
	      /* Enable output and HP amp. Set vref=Ground */
	      corb_write (mixer, cad, wid, 0, SET_PINCTL, 0xc0);
	    }
	  else
	    {

Program the correct VRef Values


	      if (widget->pin_type == PIN_IN)	/* Line-in */
		{
		  corb_write (mixer, cad, wid, 0, SET_PINCTL, 0x20);	/*Ground*/
		}
	      else		/* Mic-in */
		{

0%

		}
	    }
	  return value;
	  break;

	case CT_INSRCSELECT:	/* Emulated selector based on input mute mask */
	  if (value < 0)
	    value = 0;
	  if (value >= widget->nconn)
	    value = widget->nconn;
	  return handle_insrcselect (mixer, widget, value);
	  break;

	case CT_OUTGAINSEL:
	  // TODO: Handle mute
	  corb_write (mixer, cad, wid, 0, SET_GAIN (1, 0, 1, 0, ix), value);
	  corb_write (mixer, cad, wid, 0, SET_GAIN (1, 0, 0, 1, ix), value);
	  return value;
	  break;

	case CT_OUTMONO:
	  v = (value & 0xffff);
	  if (v == 0)
	    v = 0x80;		/* Muted */
	  else
	    v = scaleout_vol (v, widget->outamp_caps);
	  corb_write (mixer, cad, wid, 0, SET_GAIN (1, 0, 1, 0, ix), v);
	  if (linked_wid)
	    corb_write (mixer, cad, wid, 0, SET_GAIN (1, 0, 1, 0, ix), v);
	  return value;
	  break;

	case CT_OUTSTEREO:
	  v = (value & 0xffff);
	  if (v == 0)
	    v = 0x80;		/* Muted */
	  else
	    v = scaleout_vol (v, widget->outamp_caps);
	  corb_write (mixer, cad, wid, 0, SET_GAIN (1, 0, 1, 0, ix), v);
	  if (linked_wid)
	    corb_write (mixer, cad, linked_wid, 0, SET_GAIN (1, 0, 1, 0, ix), v);
	  v = ((value >> 16) & 0xffff);
	  if (v == 0)
	    v = 0x80;		/* Muted */
	  else
	    v = scaleout_vol (v, widget->outamp_caps);
	  corb_write (mixer, cad, wid, 0, SET_GAIN (1, 0, 0, 1, ix), v);
	  if (linked_wid)
	    corb_write (mixer, cad, linked_wid, 0, SET_GAIN (1, 0, 0, 1, ix), v);
	  return value;
	  break;

	case CT_OUTMUTE:
	  v = 0;
	  if (value)
	    v = 0x80;
	  corb_write (mixer, cad, wid, 0, SET_GAIN (1, 0, 1, 1, ix), v);
	  if (linked_wid)
	    corb_write (mixer, cad, linked_wid, 0, SET_GAIN (1, 0, 1, 1, ix), v);
	  return value;
	  break;

	default:
	  return OSS_EINVAL;
	}
    }

  return OSS_EINVAL;
}

static int
perform_pin_sense (hdaudio_mixer_t * mixer)
{
  int cad, wid;
  unsigned int a, b;
  int plugged_in;
  codec_t *codec;

  for (cad = 0; cad < mixer->ncodecs; cad++)
    if (mixer->codecs[cad] != &NULL_codec)
      {
	codec = mixer->codecs[cad];

	for (wid = 1; wid < mixer->codecs[cad]->nwidgets; wid++)
	  if (mixer->codecs[cad]->widgets[wid].wid_type == NT_PIN)	/* Pin complex */
	    {
	      widget_t *widget = &mixer->codecs[cad]->widgets[wid];

	      widget->impsense = -1;
	      widget->sensed_pin = widget->pin_type;

	      plugged_in = 1;

	      /* Load the sense information */
	      if ((widget->pincaps & PINCAP_JACKSENSE_CAPABLE)
		  || (widget->pincaps & PINCAP_IMPSENSE_CAPABLE))
		{
		  int tmout = 0;
		  if (!corb_read
		      (mixer, cad, wid, 0, GET_PIN_SENSE, 0, &a, &b))
		    a = 0x7fffffff;	/* No jack present */

		  if (a & (1UL << 31))	/* Jack present */
		    if (widget->pincaps & PINCAP_TRIGGERR_RQRD)	/* Trigger required */
		      {
			corb_write (mixer, cad, wid, 0, TRIGGER_PIN_SENSE, 0);

			do
			  {
			    oss_udelay (10);
			    if (!corb_read
				(mixer, cad, wid, 0, GET_PIN_SENSE, 0, &a,
				 &b))
			      break;
			  }
			while (tmout++ < 10000
			       && ((a & 0x7fffffff) == 0x7fffffff));
		      }

		  if (!corb_read
		      (mixer, cad, wid, 0, GET_PIN_SENSE, 0, &a, &b))
		    continue;
		}
	      else
		continue;

	      /* Precence detect */
	      if (widget->pincaps & PINCAP_JACKSENSE_CAPABLE)
		{
#if 0
		  if (a & (1UL << 31))
		    cmn_err (CE_WARN, "%s jack is plugged in\n",
			     widget->name);
		  else
		    cmn_err (CE_WARN, "%s NOT plugged in\n", widget->name);
#endif
		  if (!(a & (1UL << 31)))
		    plugged_in = 0;
		}

	      widget->plugged_in = plugged_in;
	      if (plugged_in)
		codec->num_jacks_plugged++;

	      /* Impedance sensing */
	      widget->impsense = a & 0x7fffffff;
	      if (plugged_in && (widget->pincaps & PINCAP_IMPSENSE_CAPABLE))
		if (hdaudio_jacksense > 0)
		  if (widget->impsense != 0x7fffffff)	/* Sense operation finished */
		    {
		      /* cmn_err (CE_WARN, "%s sense %08x (%d)\n", widget->name, a, a & 0x7fffffff);  */

		      if (widget->impsense >= 1000000)	/* High impedance (line-in) pin */
			{
			  /* cmn_err(CE_CONT, "  --> Line level input\n"); */
			  widget->pin_type = widget->sensed_pin = PIN_IN;
			}
		      else if (widget->impsense <= 10000)	/* Low impedance (speaker/hp out) */
			{
			  /* cmn_err(CE_CONT, "  --> Output pin\n"); */
			  widget->pin_type = widget->sensed_pin = PIN_OUT;
			}
		      else	/* Something between low and high (mic?) */
			{
			  /* cmn_err(CE_CONT, "  --> Mic level input\n"); */
			  widget->pin_type = widget->sensed_pin = PIN_MIC;
			}
		    }
	    }
      }


Set all pins to correct mode


  for (cad = 0; cad < mixer->ncodecs; cad++)
    if (mixer->codecs[cad] != &NULL_codec)
      for (wid = 1; wid < mixer->codecs[cad]->nwidgets; wid++)
	{
	  if (mixer->codecs[cad]->widgets[wid].wid_type == NT_PIN)	/* Pin complex */
	    {
	      widget_t *widget = &mixer->codecs[cad]->widgets[wid];

	      if (widget->pin_type == PIN_IN
		  || widget->pin_type == PIN_UNKNOWN)
		{		/* Input PIN */
		  corb_write (mixer, cad, wid, 0, SET_PINCTL, 0x20);
		}
	      if (widget->pin_type == PIN_MIC)
		{		/* Input PIN (mic) */
		  /* TODO: Handle mic amp */
		  corb_write (mixer, cad, wid, 0, SET_PINCTL, 0x24);
		}
	      else
		{		/* Output PIN */
		  corb_write (mixer, cad, wid, 0, SET_PINCTL, 0xc0);
		}

	      if (widget->pincaps & PINCAP_EAPD)
		{
		  unsigned int eapd, dummy;
		  DDB (cmn_err
		       (CE_CONT, "Pin widget %d is EAPD capable.\n",
			widget->wid));
		  if (corb_read
		      (mixer, cad, wid, 0, GET_EAPD, 0, &eapd, &dummy))
		    {
		      eapd |= 0x02;	/* EAPD enable */
		      corb_write (mixer, cad, wid, 0, SET_EAPD, eapd);
		    }
		}
	    }
	}

  return 1;
}

static int
hdaudio_mix_init (int dev)
{
  hdaudio_mixer_t *mixer = mixer_devs[dev]->devc;
  char tmp[32];
  int err;
  int working_codecs=0;
  int cad;


First pass. Count the number of active codecs.


  for (cad = 0; cad < mixer->ncodecs; cad++)
    if (mixer->codecs[cad] != &NULL_codec)
      {
	codec_t *codec = mixer->codecs[cad];

	if (codec == &NULL_codec || codec->nwidgets == 0)	/* Codec not active */
	  continue;


Enable the new generic mixer driver

	if (codec->mixer_init == NULL)
	{
	  codec->mixer_init = hdaudio_generic_mixer_init;
	}
	
	if (codec->active && codec->mixer_init != NULL_mixer_init)
	   working_codecs++;
      }


Second pass. Initialize the mixer interfaces for all active codecs.


  for (cad = 0; cad < mixer->ncodecs; cad++)
    if (mixer->codecs[cad] != &NULL_codec)
      {
	codec_t *codec = mixer->codecs[cad];
	int group = 0;

	if (codec == &NULL_codec || codec->nwidgets == 0)	/* Codec not active */
	  continue;

	if (working_codecs > 1)
	  {
	    sprintf (tmp, "codec%d", cad + 1);
	    if ((group = mixer_ext_create_group (dev, 0, tmp)) < 0)
	      {
		return group;
	      }
	  }

	if (codec->active && codec->mixer_init != NULL_mixer_init)
	   {
	    if ((err = codec->mixer_init (dev, mixer, cad, group)) < 0)
	      {
		if (err != OSS_EAGAIN)
		  return err;

We got EAGAIN whic means that we should fall to the old generic mixer.

		if ((err =
		     hdaudio_generic_mixer_init (dev, mixer, cad, group)) < 0)
		  {
		    return err;
		  }
	      }
	    else
	      continue;
	   }
      }

  if (mixer->client_mixer_init != 0)
    mixer->client_mixer_init (dev);

  return 0;
}

static void
copy_endpoints(hdaudio_mixer_t * mixer, codec_t *codec, int pass)
{
	int i;


Install output endpoints from the codec to the global endpoint table.


  for (i = 0; i < codec->num_outendpoints; i++)
    {
      hdaudio_endpointinfo_t *ep = &codec->outendpoints[i];
      ep->skip = mixer->codecs[ep->cad]->widgets[ep->base_wid].skip;
    }

	for (i=0;i<codec->num_outendpoints;i++)
	{
	  int ix = (codec->multich_map >> (i * 4)) & 0x0f;
          hdaudio_endpointinfo_t *ep = &codec->outendpoints[ix];

       	  ep->skip = mixer->codecs[ep->cad]->widgets[ep->base_wid].skip;

	  if (ep->skip || ep->already_used)
	     continue;

	  switch (pass)
	  {
	  case 0: /* Pick analog endpoints */
		if (ep->is_digital)
		   continue;
		break;

	  case 1: /* Pick digital endpoints */
		if (!ep->is_digital)
		   continue;
		break;
	  }

	  memcpy(&mixer->outendpoints[mixer->copied_outendpoints++], ep, sizeof(*ep));
	  ep->already_used=1;
	}
        mixer->num_outendpoints = mixer->copied_outendpoints;


Install input endpoints from the codec to the global endpoint table.


  for (i = 0; i < codec->num_inendpoints; i++)
    {
      hdaudio_endpointinfo_t *ep = &codec->inendpoints[i];
      ep->skip = mixer->codecs[ep->cad]->widgets[ep->base_wid].skip;
    }

	for (i=0;i<codec->num_inendpoints;i++)
	{
          hdaudio_endpointinfo_t *ep = &codec->inendpoints[i];

       	  ep->skip = mixer->codecs[ep->cad]->widgets[ep->base_wid].skip;

	  if (ep->skip || ep->already_used)
	     continue;

	  switch (pass)
	  {
	  case 0: /* Pick analog endpoints */
		if (ep->is_digital)
		   continue;
		break;

	  case 1: /* Pick digital endpoints */
		if (!ep->is_digital)
		   continue;
		break;
	  }

	  memcpy(&mixer->inendpoints[mixer->copied_inendpoints++], ep, sizeof(*ep));
	  ep->already_used=1;
	}
        mixer->num_inendpoints = mixer->copied_inendpoints;
}

 /*ARGSUSED*/
  hdaudio_mixer_t *
hdaudio_mixer_create (char *name, void *devc,
		      oss_device_t * osdev,
		      hdmixer_write_t writefunc,
		      hdmixer_read_t readfunc, unsigned int codecmask,
		      unsigned int vendor_id, unsigned int subvendor_id)
{
  hdaudio_mixer_t *mixer;
  int i, func;
  int ncodecs = 0;
  char tmp[128];
  int mixer_dev;

  char *hw_info = osdev->hw_info;	/* For printing hardware information */

  if ((mixer = PMALLOC (osdev, sizeof (*mixer))) == NULL)
    {
      cmn_err (CE_WARN, "hdaudio_mixer_create: Out of memory\n");
      return NULL;
    }

  memset (mixer, 0, sizeof (*mixer));

  mixer->devc = devc;
  mixer->osdev = osdev;
  mixer->mixer_dev = 0;
  strncpy (mixer->name, name, sizeof (mixer->name));
  mixer->name[sizeof (mixer->name) - 1] = 0;

  for (i = 0; i < MAX_CODECS; i++)
    mixer->codecs[i] = &NULL_codec;

  mixer->read = readfunc;
  mixer->write = writefunc;
  mixer->codecmask = codecmask;

  sprintf (hw_info, "HD Audio controller %s\n"
	   "Vendor ID    0x%08x\n"
	   "Subvendor ID 0x%08x\n", name, vendor_id, subvendor_id);
  hw_info += strlen (hw_info);

  if (hdaudio_snoopy)
     {
	sprintf(hw_info, "**** Warning: Diagnostic mode enabled (hdaudio_snoopy) ****\n");
  	hw_info += strlen (hw_info);
     }


Search first all audio function groups for all codecs and then handle modem function groups.

  for (func=1;func<=2;func++)
  for (i = 0; i < 16; i++)
    if (mixer->codecmask & (1 << i))
      {
	if (attach_codec (mixer, i, hw_info, subvendor_id, func) >= 0)
	  ncodecs++;
	hw_info += strlen (hw_info);
      }

  if (ncodecs == 0)
    {
      cmn_err (CE_WARN, "No hdaudio codecs were detected\n");
      return NULL;
    }


The attach_codec routine copied all analog endpoints to the global endpoint table. Now pick possible digital endpoints from the active codecs.


  for (i = 0; i < 16; i++)
    if (mixer->codecmask & (1 << i))
    if (mixer->codecs[i]->active)
      {
  	copy_endpoints(mixer, mixer->codecs[i], 1); /* Copy digital endpoints from codec to mixer */
      }

  if (!mixer->remap_avail)
     check_names (mixer);

  propagate_names (mixer);
  perform_pin_sense (mixer);

  if (mixer->chip_name == NULL)
    mixer->chip_name = "None";
  DDB (cmn_err (CE_CONT, "Mixer: %s %s\n", mixer->name, mixer->chip_name));
  //sprintf (tmp, "%s %s", mixer->name, mixer->chip_name);
  sprintf (tmp, "High Definition Audio %s", mixer->chip_name);

  if ((mixer_dev = oss_install_mixer (OSS_MIXER_DRIVER_VERSION,
				      osdev,
				      osdev,
				      tmp,
				      &hda_mixer_driver,
				      sizeof (mixer_driver_t), mixer)) < 0)
    {
      return NULL;
    }

  mixer_devs[mixer_dev]->hw_devc = devc;
  mixer_devs[mixer_dev]->priority = 10;	/* Known motherboard device */
  mixer->mixer_dev = mixer_dev;
  mixer_ext_set_init_fn (mixer->mixer_dev, hdaudio_mix_init,
			 mixer->ncontrols * 4);
  touch_mixer (mixer->mixer_dev);

  return mixer;
}

/*ARGSUSED*/
static int
find_playvol_widget (hdaudio_mixer_t * mixer, int cad, int wid)
{
  int this_wid = wid;

  return this_wid;
}

/*ARGSUSED*/
static int
find_recvol_widget (hdaudio_mixer_t * mixer, int cad, int wid)
{
  int this_wid = wid;

  return this_wid;
}

/*ARGSUSED*/
static int
find_recsrc_widget (hdaudio_mixer_t * mixer, int cad, int wid)
{
  int this_wid = wid;

  return this_wid;
}

static int
attach_node (hdaudio_mixer_t * mixer, int cad, int wid, int parent)
{
  static const char *widget_types[16] = {
    "Audio output",
    "Audio input",
    "Audio mixer",
    "Audio selector",
    "Pin complex",
    "Power widget",
    "Volume knob",
    "Beep generator",
    "Reserved8",
    "Reserved9",
    "ReservedA",
    "ReservedB",
    "ReservedC",
    "ReservedD",
    "ReservedE",
    "Vendor defined audio"
  };

  static const char *widget_id[16] = {
    "pcm",
    "rec",
    "mix",
    "select",
    "jack",
    "power",
    "vol",
    "beep",
    "unkn",
    "unkn",
    "unkn",
    "unkn",
    "unkn",
    "unkn",
    "unkn",
    "vendor"
  };

  static const int bit_sizes[] = {
    8,
    16,
    20,
    24,
    32
  };

  static const unsigned int bit_fmts[] = {
    AFMT_U8,
    AFMT_S16_LE,
    AFMT_S32_LE,
    AFMT_S32_LE,
    AFMT_S32_LE
  };

  static const int srates[] = {
    8000,
    11025,
    16000,
    22050,
    32000,
    44100,
    48000,
    88200,
    96000,
    176400,
    192000,
    384000
  };

  unsigned int widget_caps, b, pstate, group_type_in;
  unsigned int inamp_caps, outamp_caps;
  int group_type, wid_type;
  int i;

  codec_t *codec = mixer->codecs[cad];
  widget_t *widget;

  if (codec == &NULL_codec)
    return 0;

  if (!corb_read
      (mixer, cad, wid, 0, GET_PARAMETER, HDA_GROUP_TYPE, &group_type_in, &b))
    group_type_in = 0;

  if (wid >= MAX_WIDGETS)
    {
      cmn_err (CE_WARN, "Too many widgets for codec %d (%d/%d)\n", cad, wid, MAX_WIDGETS);
      return 0;
    }

  mixer->ncontrols++;

  codec->nwidgets = wid + 1;
  widget = &codec->widgets[wid];

  widget->cad = cad;
  widget->wid = wid;

  widget->rgbcolor = 0;

  group_type = group_type_in & 0xff;
  widget->group_type = group_type_in;

  DDB (cmn_err (CE_CONT, "Node %d, parent %d type %d, unsol capa %d\n",
		wid, parent, group_type, !!(group_type_in & 0x100)));

  if (!corb_read
      (mixer, cad, wid, 0, GET_PARAMETER, HDA_WIDGET_CAPS, &widget_caps, &b))
    {
      cmn_err (CE_WARN, "GET_PARAMETER HDA_WIDGET_CAPS failed\n");
      return 0;
    }

  if (widget_caps & WCAP_AMP_CAP_OVERRIDE)	/* Amp param override? */
    {
      if (!corb_read (mixer, widget->cad, widget->wid, 0,
		      GET_PARAMETER, HDA_OUTPUTAMP_CAPS, &outamp_caps, &b))
	{
	  cmn_err (CE_WARN, "GET_PARAMETER HDA_OUTPUTAMP_CAPS failed\n");
	  return OSS_EIO;
	}
      widget->outamp_caps = outamp_caps;

      if (!corb_read (mixer, widget->cad, widget->wid, 0,
		      GET_PARAMETER, HDA_INPUTAMP_CAPS, &inamp_caps, &b))
	{
	  cmn_err (CE_WARN, "GET_PARAMETER HDA_INPUTAMP_CAPS failed\n");
	  return OSS_EIO;
	}
      widget->inamp_caps = inamp_caps;
    }
  else
    {
      widget->outamp_caps = outamp_caps = codec->default_outamp_caps;
      widget->inamp_caps = inamp_caps = codec->default_inamp_caps;
    }

  if (!corb_read (mixer, cad, wid, 0, GET_POWER_STATE, 0, &pstate, &b))
    return 0;

  /* power up each of the widgets if there is a Power Capability (1<<10) */
  if (widget_caps & WCAP_POWER_CTL)
    corb_write (mixer, cad, wid, 0, SET_POWER_STATE, 0);

  widget->widget_caps = widget_caps;

  wid_type = (widget_caps >> 20) & 0x0f;
  DDB (cmn_err
       (CE_CONT, "\tWidget type %d (%s)(%s)\n", wid_type,
	widget_types[wid_type], widget_id[wid_type]));
  DDB (cmn_err (CE_CONT, "\tPower State %d\n", pstate));

  if (widget_caps & WCAP_CONN_LIST)
    {
      unsigned int clen;
      /* Handle connection list */

      if (!corb_read
	  (mixer, cad, wid, 0, GET_PARAMETER, HDA_CONNLIST_LEN, &clen, &b))
	{
	  cmn_err (CE_WARN, "GET_PARAMETER HDA_CONNLIST_LEN failed\n");
	  return 0;
	}

      if (clen & 0x80)
	{
	  cmn_err (CE_WARN, "Long form connection list not supported\n");
	  return 0;
	}

      if (clen > 0)
	{
	  if (clen > MAX_CONN)
	    {
	      cmn_err (CE_WARN, "Too many connections\n");
	      return 0;
	    }

	  DDB (cmn_err (CE_CONT, "\tConn list (%d): ", clen));

	  for (i = 0; i < clen; i += 4)
	    {
	      int j;
	      unsigned int a;

	      if (!corb_read
		  (mixer, cad, wid, 0, GET_CONNECTION_LIST_ENTRY, i, &a, &b))
		{
		  cmn_err (CE_WARN, "GET_CONNECTION_LIST_ENTRY failed\n");
		  return 0;
		}

	      for (j = 0; j < 4 && (i + j) < clen; j++)
		{
		  int v, is_range = 0;

		  if (widget->nconn >= MAX_CONN)
		    {
		      cmn_err (CE_WARN,
			       "Too many connections for widget %d (%d)\n",
			       widget->wid, widget->nconn);
		      break;
		    }

		  v = (a >> (j * 8)) & 0xff;
		  DDB (cmn_err (CE_CONT, "%d ", v));

		  if (v & 0x80)
		    {
		      is_range = 1;
		      v &= ~0x80;
		    }

		  if (v < 0 || v >= MAX_WIDGETS)
		    {
		      cmn_err (CE_NOTE,
			       "Connection %d for widget %d is out of range (%d) - Skipped\n",
			       j, widget->wid, v);
		      continue;
		    }

		  if (is_range)	/* Range: prev...v */
		    {
		      int x;
		      codec->widgets[v].references[codec->widgets[v].
						   refcount++] = wid;

		      if (widget->nconn < 1)
			{
			  cmn_err (CE_CONT,
				   "Bad range connection for widget %d\n",
				   widget->wid);
			  continue;
			}

		      for (x = widget->connections[widget->nconn - 1] + 1;
			   x <= v; x++)
			{
			  if (widget->nconn >= MAX_CONN)
			    {
			      cmn_err (CE_WARN,
				       "Too many connections(B) for widget %d (%d)\n",
				       widget->wid, widget->nconn);
			      break;
			    }

			  widget->connections[widget->nconn++] = x;
			  codec->widgets[x].references[codec->widgets[x].
						       refcount++] = wid;
			}
		    }
		  else
		    {
		      widget->connections[widget->nconn++] = v;
		      codec->widgets[v].references[codec->widgets[v].
						   refcount++] = wid;
		    }
		}
	    }

	  DDB (cmn_err (CE_CONT, "\n"));
	}
    }

  widget->wid_type = wid_type;

  strcpy (widget->name, widget_id[wid_type]);

  if (group_type == 0)		/* Not group but a widget */
    switch (wid_type)
      {
      case NT_DAC:		/* Audio output */
      case NT_ADC:		/* Audio input */
	{
	  unsigned int sizes;
	  int j;
	  hdaudio_endpointinfo_t *endpoint;

	  if (wid_type == 0)
	    {			/* Output endpoint */
	      if (mixer->num_outendpoints >= HDA_MAX_OUTSTREAMS)
		{
		  cmn_err (CE_WARN, "Too many output endpoints\n");
		  return 0;
		}

	      endpoint = &codec->outendpoints[codec->num_outendpoints++];

	      endpoint->stream_number = endpoint->default_stream_number =
		++mixer->num_outendpoints;
	      endpoint->ix = codec->num_outendpoints - 1;
	      endpoint->iddle_stream = 0;
	    }
	  else
	    {			/* Input endpoint */
	      if (mixer->num_inendpoints >= HDA_MAX_INSTREAMS)
		{
		  cmn_err (CE_WARN, "Too many input endpoints\n");
		  return 0;
		}

	      endpoint = &codec->inendpoints[codec->num_inendpoints++];

	      endpoint->stream_number = endpoint->default_stream_number =
		++mixer->num_inendpoints;
	      endpoint->ix = codec->num_inendpoints - 1;
	      endpoint->iddle_stream = 0;
	    }

	  endpoint->cad = cad;
	  endpoint->base_wid = wid;
	  endpoint->recsrc_wid = wid;
	  endpoint->volume_wid = wid;
	  endpoint->nrates=0;
	  endpoint->name = widget->name;

	  widget->endpoint = endpoint;


Find the widgets that manage rec/play volumes and recording source selection.

	  switch (wid_type)
	    {
	    case NT_DAC:
	      endpoint->volume_wid = find_playvol_widget (mixer, cad, wid);
	      break;

	    case NT_ADC:
	      endpoint->volume_wid = find_recvol_widget (mixer, cad, wid);
	      endpoint->recsrc_wid = find_recsrc_widget (mixer, cad, wid);
	      break;
	    }

	  if (widget->widget_caps & WCAP_STEREO)
	    endpoint->channels = 2;
	  else
	    endpoint->channels = 1;

	  sizes = codec->sizes;

	  if (widget->widget_caps & WCAP_DIGITAL)	/* Digital */
	    {
	      endpoint->is_digital = 1;
	      if (wid_type == NT_ADC)
		strcpy (widget->name, "spdifin");
	      else
		{
		  strcpy (widget->name, "spdifout");
		  corb_write (mixer, cad, wid, 0, SET_SPDIF_CONTROL1, 1);	/* Digital output enable */
		  endpoint->iddle_stream = FRONT_STREAM;
		}

	      endpoint->fmt_mask |= AFMT_AC3;
	      if (sizes & (1 << 20))	/* 32 bits */
		{
		  endpoint->fmt_mask |= AFMT_SPDIF_RAW;
		}
	    }
	  else
	    {
	      endpoint->is_digital = 0;
	    }

	  if (widget->widget_caps & WCAP_FORMAT_OVERRIDE)	/* Override */
	    {
	      if (!corb_read (mixer, cad, wid, 0,
			      GET_PARAMETER, HDA_PCM_SIZES, &sizes, &b))
		{
		  cmn_err (CE_WARN, "GET_PARAMETER HDA_PCM_SIZES failed\n");
		  return 0;
		}
	    }

	  widget->sizes = sizes;
	  endpoint->sizemask = sizes;
	  if (sizes == 0)
	    {
	      corb_read (mixer, cad, codec->afg, 0, GET_PARAMETER,
			 HDA_PCM_SIZES, &sizes, &b);
	      widget->sizes = sizes;
	      endpoint->sizemask = sizes;
	    }

	  DDB (cmn_err (CE_CONT, "\tPCM Size/Rate %08x\n", sizes));

	  for (j = 0; j < 5; j++)
	    if (sizes & (1 << (j + 16)))
	      {
		DDB (cmn_err
		     (CE_CONT, "\t\tSupports %d bits\n", bit_sizes[j]));
		endpoint->fmt_mask |= bit_fmts[j];
	      }

	  for (j = 0; j < 12; j++)
	    if (sizes & (1 << j))
	      {
		DDB (cmn_err (CE_CONT, "\t\tSupports %d Hz\n", srates[j]));
		if (endpoint->nrates < 20)
		  {
		    endpoint->rates[endpoint->nrates++] = srates[j];
		  }
	      }

	  if ((widget->widget_caps & WCAP_DIGITAL) && wid_type == NT_DAC)	/* Digital output */
	    {

Select front output as the default stream number. In this way copy of the analog front signal will automatically be delivered to the S/PDIF outpput when the S/PDIF device is not being used for some other purpose.

	      corb_write (mixer, cad, wid, 0, SET_CONVERTER,
			  FRONT_STREAM << 4);
	    }
	  else
	    {
	      /* Select the iddle stream (0) for analog outputs */
	      corb_write (mixer, cad, wid, 0, SET_CONVERTER,
			  IDDLE_STREAM << 4);
	    }
	  /* Select 48 kHz/16 bits/stereo */
	  corb_write (mixer, cad, wid, 0, SET_CONVERTER_FORMAT, 0x0009);

	}
	break;

      case NT_KNOB:		/* Volume knob */
	/* Clear the direct control bit */
	corb_write (mixer, cad, wid, 0, SET_VOLUME_KNOB_CONTROL, 0x00);
	break;

      case NT_PIN:		/* Pin complex */
	{
	  unsigned int conf;
	  unsigned int pincaps;

	  if (!corb_read
	      (mixer, cad, wid, 0, GET_CONFIG_DEFAULT, 0, &conf, &b))
	    return 0;
	  if (!corb_read (mixer, cad, wid, 0,
			  GET_PARAMETER, HDA_PIN_CAPS, &pincaps, &b))
	    {
	      cmn_err (CE_WARN, "GET_PARAMETER HDA_PIN_CAPS failed\n");
	      return 0;
	    }

	  widget->pincaps = pincaps;
#if 0
	  if (widget->widget_caps & WCAP_UNSOL_CAPABLE)
	    corb_write (mixer, cad, wid, 0, SET_UNSOLICITED, 0x80 | wid);
#endif

	  if (conf != 0)
	    {
	      int default_device = (conf >> 20) & 0x0f;
	      int default_loc = (conf >> 24) & 0x3f;
	      int conn = (conf >> 30) & 0x03;

	      int color;
	      int  no_color=0;
	      char *name = NULL, *loc = "", *color_name = NULL;

	      color = (conf >> 12) & 0x0f;

	      if (pincaps & (1 << 6))
		cmn_err (CE_WARN, "Balanced I/O not supported\n");
	      if (!(pincaps & (1 << 5)))	/* No input */
		widget->pin_type = PIN_OUT;
	      if (!(pincaps & (1 << 4)))
		widget->pin_type = PIN_IN;

	      DDB (cmn_err (CE_CONT, "\tConfig default %08x\n", conf));

	      if ((default_loc & 0x0f) == 0x1)	/* Rear panel - default */
		loc = "";
	      if ((default_loc & 0x0f) == 0x2)	/* Front panel */
		loc = "fp-";
	      if ((default_loc & 0xf0) == 0x10)	/* Internal func - eg cd/tad/spk */
		loc = "int-";

	      if (conn == 1 && !(hdaudio_noskip & 1))	/* Pin not connected to anything */
		{
		  widget->skip = 1;
		  widget->skip_output = 1;
		}

	      switch (default_device)
		{
		case 0x0:
		  name = "lineout";
		  widget->pin_type = PIN_OUT;
		  break;
		case 0x1:
		  name = "speaker";
		  no_color=1;
		  widget->pin_type = PIN_OUT;
		  break;
		case 0x2:
		  name = "headphone";
		  widget->pin_type = PIN_OUT;
		  break;
		case 0x3:
		  name = "cd";
		  no_color=1;
		  widget->pin_type = PIN_IN;
		  break;
		case 0x4:
		  name = "spdifout";
		  no_color=1;
		  widget->pin_type = PIN_OUT;
		  break;
		case 0x5:
		  name = "digout";
		  no_color=1;
		  widget->pin_type = PIN_OUT;
		  break;
		case 0x6:
		  name = "modem";
		  no_color=1;
		  break;
		case 0x7:
		  name = "phone";
		  no_color=1;
		  break;
		case 0x8:
		  name = "linein";
		  widget->pin_type = PIN_IN;
		  break;
		case 0x9:
		  name = "aux";
		  break;
		case 0xa:
		  name = "mic";
		  widget->pin_type = PIN_MIC;
		  break;
		case 0xb:
		  name = "telephony";
		  no_color=1;
		  break;
		case 0xc:
		  name = "spdifin";
		  no_color=1;
		  break;
		case 0xd:
		  name = "digin";
		  no_color=1;
		  break;
		case 0xe:
		  name = "reserved";
		  no_color=1;
		  break;
		case 0xf:	/* Unused pin widget */
		  if (hdaudio_noskip & 2) break;
		  widget->skip = 1;
		  widget->skip_output = 1;
		  break;
		}

/* process only colored jacks and skip fixed function jacks */
	      switch (color)
		{
		case 0x1:
		  color_name = "black";
		  widget->rgbcolor = OSS_RGB_BLACK;
		  break;
		case 0x2:
		  color_name = "gray";
		  widget->rgbcolor = OSS_RGB_GRAY;
		  break;
		case 0x3:
		  color_name = "blue";
		  widget->rgbcolor = OSS_RGB_BLUE;
		  break;
		case 0x4:
		  color_name = "green";
		  widget->rgbcolor = OSS_RGB_GREEN;
		  break;
		case 0x5:
		  color_name = "red";
		  widget->rgbcolor = OSS_RGB_RED;
		  break;
		case 0x6:
		  color_name = "orange";
		  widget->rgbcolor = OSS_RGB_ORANGE;
		  break;
		case 0x7:
		  color_name = "yellow";
		  widget->rgbcolor = OSS_RGB_YELLOW;
		  break;
		case 0x8:
		  color_name = "purple";
		  widget->rgbcolor = OSS_RGB_PURPLE;
		  break;
		case 0x9:
		  color_name = "pink";
		  widget->rgbcolor = OSS_RGB_PINK;
		  break;
		case 0xe:
		  color_name = "white";
		  widget->rgbcolor = OSS_RGB_WHITE;
		  break;

		default:
		  if (name != NULL)
		    color_name = name;
		  else
		    color_name = "internal";
		}

	      if (no_color)
		 widget->rgbcolor = 0;

	      if (default_device == 0xf) /* Not present */
	      {
		      widget->rgbcolor=0;
		      color_name = "internal";
	      }

	      sprintf (widget->color, "%s%s", loc, color_name);

By Hannu 20080111 Use jack color as the widget name if no name was defined or if the default function is lineout. This fixes the problem of several jacks being named as lineout.

	      if (name == NULL || default_device == 0x00)
		name = color_name;
	      sprintf (widget->name, "%s%s", loc, name);
	    }
	}
	break;
      }

#if 0
  if (!corb_read
      (mixer, cad, wid, 0, GET_PARAMETER, HDA_NODE_COUNT, &node_count, &b))
    {
      cmn_err (CE_WARN, "GET_PARAMETER HDA_NODE_COUNT1 failed\n");
      return 0;
    }

  first_node = (node_count >> 16) & 0xff;
  num_nodes = node_count & 0xff;

  DDB (cmn_err
       (CE_CONT, "\tFirst node %d, num nodes %d\n", first_node, num_nodes));

  if (first_node > 0)
    for (i = first_node; i < first_node + num_nodes; i++)
      if (!attach_node (mixer, cad, i, wid))
	return 0;
#endif

Handle hardcodded widget names


  if (codec->remap != NULL)
    {
      int w;

      mixer->remap_avail=1;

      for (w = 0; codec->remap[w] != NULL; w++)
	if (w == wid)
	  {
	    char *s = codec->remap[w];

	    if (*s != 0)
	      {
		strcpy (widget->name, s);
		if (*widget->color == 0)
		  {
		    strcpy (widget->color, widget->name);
		  }
	      }
	    break;
	  }
    }

  return 1;
}

/*ARGSUSED*/
static int
attach_group (hdaudio_mixer_t * mixer, int cad, int wid, int parent, int group_type)
{
  unsigned int a, b, gt;
  int i, first_node, num_nodes;
  codec_t *codec = mixer->codecs[cad];

  if (codec == &NULL_codec)
    return 0;

  if (!corb_read (mixer, cad, wid, 0,
		  GET_PARAMETER, HDA_OUTPUTAMP_CAPS,
		  &codec->default_outamp_caps, &b))
    {
      cmn_err (CE_WARN, "GET_PARAMETER HDA_OUTPUTAMP_CAPS failed\n");
      return 0;
    }

  if (!corb_read (mixer, cad, wid, 0,
		  GET_PARAMETER, HDA_INPUTAMP_CAPS,
		  &codec->default_inamp_caps, &b))
    {
      cmn_err (CE_WARN, "GET_PARAMETER HDA_INPUTTAMP_CAPS failed\n");
      return 0;
    }

  if (!corb_read (mixer, cad, wid, 0, GET_PARAMETER, HDA_NODE_COUNT, &a, &b))
    {
      cmn_err (CE_WARN, "GET_PARAMETER HDA_NODE_COUNT2 failed\n");
      return 0;
    }

  first_node = (a >> 16) & 0xff;
  num_nodes = a & 0xff;

  corb_read (mixer, cad, wid, 0, GET_PARAMETER, HDA_GROUP_TYPE, &gt, &b);
  DDB (cmn_err (CE_CONT, "\tGroup %d First node %d, num nodes %d\n", wid,
		first_node, num_nodes));

Ignore other than audio function groups. Codecs probably allocate higher widget number for the modem group than the audio group. So in this way we can have smaller MAX_WIDGETS which in turn conserves memory.

  if ((gt & 0xff) != group_type)
    return 0;

  if (corb_read (mixer, cad, wid, 0, GET_PARAMETER, HDA_PCM_SIZES, &a, &b))
    {
      codec->sizes = a;
    }

  if (first_node > 0)
    for (i = first_node; i < first_node + num_nodes; i++)
      if (!attach_node (mixer, cad, i, wid))
	return 0;

  if (num_nodes >= 1)
     codec->active=1;
  return 1;
}

static void
polish_widget_list (hdaudio_mixer_t * mixer, int cad)
{
  widget_t *widget;
  codec_t *codec;
  int wid, conn, loop;
  int skip = 0;
  int do_jacksense = 0;

  if (hdaudio_noskip & 4) return;

  if (mixer->codecs[cad] == &NULL_codec)
    {
      cmn_err (CE_WARN, "Bad codec %d\n", cad);
    }
  codec = mixer->codecs[cad];

  for (wid = 0; wid < codec->nwidgets; wid++)
    {
      widget = &codec->widgets[wid];
    }


Use jack sensing information to remove unconnected I/O pints from the mixer interface.


  do_jacksense = 1;
  if (codec->num_jacks_plugged < 1 || hdaudio_jacksense < 1)
    do_jacksense = 0;

  if (do_jacksense)
    for (wid = 0; wid < codec->nwidgets; wid++)
      {
	widget = &codec->widgets[wid];

	if (widget->wid_type != NT_PIN)	/* Not a pin widget */
	  continue;

	if (!widget->plugged_in)
	  widget->skip = 1;
      }


Check all widgets and mark them unusable (skip=1) if all of their input connections are marked to be skipped.

This needs to be done number of times so that the skip status propagates to the end of the longest path.


  for (loop = 0; loop < codec->nwidgets / 4; loop++)	/* nwidgets/4 iterations */
    for (wid = 0; wid < codec->nwidgets; wid++)
      {
	widget = &codec->widgets[wid];

	if (widget->skip || widget->used)
	  continue;

	skip = 1;		/* For now */
	for (conn = 0; conn < widget->nconn; conn++)
	  {
	    if (!codec->widgets[widget->connections[conn]].skip)
	      skip = 0;		/* Cannot be skipped */
	  }

	if (skip && widget->nconn > 0)
	  {
	    widget->skip = 1;
	    widget->used = 1;
	  }
      }


Do the same backwards. Remove widgets that don't have connectivity to any of the pin widgets.

  for (loop = 0; loop < codec->nwidgets / 4; loop++)	/* nwidgets/4 iterations */
    for (wid = 0; wid < codec->nwidgets; wid++)
      {
	widget = &codec->widgets[wid];

	if (widget->skip_output || widget->used)
	  continue;

	skip = 1;		/* For now */
	for (conn = 0; conn < widget->refcount; conn++)
	  {
	    if (!codec->widgets[widget->references[conn]].skip_output)
	      skip = 0;		/* Cannot be skipped */
	  }

	if (skip && widget->refcount > 0)
	  {
	    widget->skip_output = 1;
	    widget->used = 1;
	  }
      }


Final pass.


  for (wid = 0; wid < codec->nwidgets; wid++)
    {
      widget = &codec->widgets[wid];

      if (widget->skip_output)
	{
	  widget->skip = 1;
	}
    }
}


/* ARGSUSED */
static int
attach_codec (hdaudio_mixer_t * mixer, int cad, char *hw_info,
		      unsigned int pci_subdevice, int group_type)
{
  unsigned int a, b, x;
  int subix, ix, i;
  int first_node, num_nodes;
  int has_audio_group = 0;
  codec_t *codec;

  if (cad >= MAX_CODECS)
    {
      cmn_err (CE_WARN, "attach_codec: Too many codecs %d\n", cad);
      return OSS_EIO;
    }

  mixer->ncodecs = cad + 1;

  if (mixer->codecs[cad] == &NULL_codec)
     {
	  if ((codec = PMALLOC (mixer->osdev, sizeof (*codec))) == NULL)
	    {
	      cmn_err (CE_CONT, "Cannot allocate codec descriptor\n");
	      return OSS_ENOMEM;
	    }
	
	  memset (codec, 0, sizeof (*codec));
	
	  mixer->codecs[cad] = codec;
     }
  else
     {
     	codec = mixer->codecs[cad];
     }

  corb_write (mixer, cad, 0, 0, SET_POWER_STATE, 0);	/* Power up everything */

  if (!corb_read (mixer, cad, 0, 0, GET_PARAMETER, HDA_VENDOR, &a, &b))
    {
      if (group_type == 1)
         {
		sprintf (hw_info, " Codec %2d: Not present\n", cad);
      		cmn_err (CE_NOTE,
	       		"attach_codec: Codec #%d is not physically present\n",
	       		cad);
	 }
      return OSS_EIO;
    }
  codec->vendor_id = a;


Find out the primary group list


  if (!corb_read (mixer, cad, 0, 0, GET_PARAMETER, HDA_NODE_COUNT, &x, &b))
    {
      cmn_err (CE_WARN, "GET_PARAMETER HDA_NODE_COUNT3 failed\n");
      return OSS_EIO;
    }

  codec->first_node = first_node = (x >> 16) & 0xff;
  num_nodes = x & 0xff;


Check if this one is an audio codec (has an audio function group)

  for (i = first_node; i < first_node + num_nodes; i++)
    {
      unsigned int gt;

      corb_read (mixer, cad, i, 0, GET_PARAMETER, HDA_GROUP_TYPE, &gt, &b);

Handle only the function group type requested by the upper layer code.

      if ((gt & 0xff) != 1)
	continue;

      has_audio_group = 1;
    }


Find codec specific settings

  for (ix = 0; codecs[ix].id != 0; ix++)
    if (codecs[ix].id == a)
      break;

  DDB (cmn_err
       (CE_CONT, "HD audio Codec ID: %08x (%s)\n", a, codecs[ix].name));

  if (codecs[ix].id == 0)	/* Unknown codec */
    {
      if (group_type == 1)
         sprintf (hw_info, " Codec %2d: Unknown (0x%08x", cad, a);
      cmn_err (CE_NOTE, "HDA codec 0x%08x not known yet\n", a);

Create hexadecimal codec ID

      if (has_audio_group && mixer->chip_name == NULL)
	if ((mixer->chip_name = PMALLOC (mixer->osdev, 32)) != NULL)
	  {
	    sprintf (mixer->chip_name, "0x%08x", a);
	  }
    }
  else
    {
      if (group_type == 1)
         sprintf (hw_info, " Codec %2d: %s (0x%08x", cad, codecs[ix].name, a);
    }

  if (has_audio_group && mixer->chip_name == NULL)
    {
      mixer->chip_name = codecs[ix].name;

    }
    
    if (codecs[ix].remap != NULL)
       codec->remap = codecs[ix].remap;

    if (codecs[ix].flags != 0)
       codec->vendor_flags = codecs[ix].flags;

  if (codecs[ix].mixer_init != NULL)
     codec->mixer_init = codecs[ix].mixer_init;

  codec->multich_map = codecs[ix].multich_map;

  if (corb_read (mixer, cad, 0, 0, GET_PARAMETER, HDA_REVISION, &a, &b))
    {
      DDB (cmn_err (CE_CONT, "HDA codec revision %d.%d (%d.%d) (0x%08x)\n",
		    (a >> 20) & 0xf,
		    (a >> 16) & 0xf, (a >> 8) & 0xff, a & 0xff, a));
    }
  else
    DDB (cmn_err (CE_CONT, "Can't get codec revision\n"));

  codec->codec_desc = &codecs[ix];

  DDB (cmn_err (CE_CONT, "**** Codec %d ****\n", cad));
  DDB (cmn_err
       (CE_CONT, "First node %d, num nodes %d\n", first_node, num_nodes));

  for (i = first_node; i < first_node + num_nodes; i++)
    {
      corb_read (mixer, cad, i, 0, GET_PARAMETER, HDA_GROUP_TYPE, &a, &b);
      if ((a & 0xff) == group_type)	/* Proper function group type */
	{
	  codec->afg = i;

	  if (corb_read (mixer, cad, i, 0, GET_SUBSYSTEM_ID, 0, &a, &b))
	    {
	      DDB (cmn_err (CE_CONT, "Subsystem ID = 0x%08x\n", a));

      	      if (group_type == 1)
	         {
	      		/* Append subvendor ID to hw_info */
	      		hw_info += strlen (hw_info);
	      		sprintf (hw_info, "/0x%08x", a);
	         }

	      codec->subvendor_id = a;

	      for (subix = 0; subdevices[subix].id != 0; subix++)
		if (subdevices[subix].id == a)
		  {
		    if (subdevices[subix].main_id != 0)
		      if (subdevices[subix].main_id != codec->vendor_id)
			continue;

		    if (subdevices[subix].pci_subdevice != 0)
		      if (subdevices[subix].pci_subdevice != pci_subdevice)
			continue;


		    DDB (cmn_err
			 (CE_CONT, "Subdevice known as %s\n",
			  subdevices[subix].name));
      		    if (group_type == 1)
		       {
		    	  hw_info += strlen (hw_info);
		    	  sprintf (hw_info, " %s", subdevices[subix].name);
		       }
		    if (subdevices[subix].remap != NULL)
		    {
		      codec->remap = subdevices[subix].remap;
		    }

		    if (subdevices[subix].multich_map != 0)
		      codec->multich_map = subdevices[subix].multich_map;
		    if (subdevices[subix].flags != 0)
		      codec->vendor_flags = subdevices[subix].flags;
		    if (subdevices[subix].mixer_init != NULL)
		    {
		      codec->mixer_init = subdevices[subix].mixer_init;
		    }
		  }
	    }
	  break;
	}
    }

  hw_info += strlen (hw_info);
  if (group_type == 1)
     strcpy (hw_info, ")\n");

  if (codec->multich_map == 0)
    {
      codec->multich_map = 0x76543210;	/* Sequential order */
    }

  for (i = first_node; i < first_node + num_nodes; i++)
    {
      if (!attach_group (mixer, cad, i, 0, group_type))
	continue;

      /* power up the AFG! */
      corb_write (mixer, cad, i, 0, SET_POWER_STATE, 0);
    }
    
  /* Initialize and setup manually endpoints for Si3055. */
  if ((mixer->codecs[cad]->vendor_flags & VF_SI3055_HACK) && (group_type == 2))
    {
      hdaudio_si3055_endpoint_init(mixer, cad);
    }

  if (has_audio_group)
    {
      polish_widget_list (mixer, cad);
    }

  copy_endpoints(mixer, codec, 0); /* Copy analog endpoints from codec to mixer */

  return (has_audio_group) ? 0 : OSS_EIO;
}

int
hdaudio_mixer_get_mixdev (hdaudio_mixer_t * mixer)
{
  return mixer->mixer_dev;
}

void
hdaudio_mixer_set_initfunc (hdaudio_mixer_t * mixer,
			    mixer_create_controls_t func)
{
  mixer->client_mixer_init = func;
}

#define BASE44k	(1<<14)

static const struct hdaudio_rate_def _hdaudio_rates[] = {
  /* 48 kHz based rates */
  {192000, (3 << 11)},		/* 4x */
  {96000, (1 << 11)},		/* 2x */
  {48000, 0},			/* 1x */
  {24000, (1 << 8)},		/* 1/2x */
  {16000, (2 << 8)},		/* 1/3x */
  {12000, (3 << 8)},		/* 1/4x */
  {9600, (4 << 8)},		/* 1/5x */
  {8000, (5 << 8)},		/* 1/6x */
  /* TODO: These rates didn't work for some reason. */
  /* 44.1 kHz based rates */
  {176400, BASE44k | (3 << 11)},	/* 4x */
  {88200, BASE44k | (1 << 11)},	/* 2x */
  {44100, BASE44k},		/* 1x */
  {22050, BASE44k | (1 << 8)},	/* 1/2x */
  {14700, BASE44k | (2 << 8)},	/* 1/3x */
  {11025, BASE44k | (3 << 8)},	/* 1/4x */
  {8820, BASE44k | (4 << 8)},	/* 1/5x */
  {7350, BASE44k | (5 << 8)},	/* 1/6x */
  {0}
};

const struct hdaudio_rate_def *hdaudio_rates = _hdaudio_rates;

int
hdaudio_codec_setup_endpoint (hdaudio_mixer_t * mixer,
			      hdaudio_endpointinfo_t * endpoint,
			      int rate, int channels, int fmt,
			      int stream_number, unsigned int *setupbits)
{

  unsigned int tmp, spdif, dummy;
  int i;

  endpoint->auto_muted = 0;

  if (!corb_read
      (mixer, endpoint->cad, endpoint->base_wid, 0, GET_SPDIF_CONTROL, 0,
       &spdif, &dummy))
    spdif = 0;

  spdif &= ~(1 << 5);		/* Audio */

  tmp = 0;

  if (fmt == AFMT_AC3)
    channels = 2;

  tmp |= channels - 1;

  switch (fmt)
    {
    case AFMT_U8:
      break;

    case AFMT_S16_LE:
      tmp |= 0x00000010;
      break;

    case AFMT_S32_LE:
      if (endpoint->sizemask & (1 << 20))	/* 32 bits */
	tmp |= 0x00000040;
      else if (endpoint->sizemask & (1 << 19))	/* 24 bits */
	tmp |= 0x00000030;
      else if (endpoint->sizemask & (1 << 18))	/* 20 bits */
	tmp |= 0x00000020;
      else
	{
	  cmn_err (CE_WARN, "Bad bit size\n");
	  return OSS_EIO;
	}
      break;

    case AFMT_AC3:
      tmp &= 0xff;
      tmp |= 0x11;		/* 16 bits stereo */
      spdif |= (1 << 5);	/* Data */
      break;

    case AFMT_SPDIF_RAW:
      tmp &= 0xff;
      tmp |= 0x81;		/* 32 bits stereo */
      break;

    default:
      cmn_err (CE_WARN, "Bad format %x\n", fmt);
      return OSS_EIO;
    }

  corb_write (mixer, endpoint->cad, endpoint->base_wid, 0, SET_SPDIF_CONTROL1,
	      spdif & 0xff);

Finally the sample rate setup


  for (i = 0; hdaudio_rates[i].rate != 0; i++)
    if (hdaudio_rates[i].rate == rate)
      {
	tmp |= hdaudio_rates[i].mask;
	break;
      }

  *setupbits = tmp;
  
  if (mixer->codecs[endpoint->cad]->vendor_flags & VF_SI3055_HACK)
    {
      hdaudio_si3055_set_rate(mixer, endpoint->cad, rate);
    }

  corb_write (mixer, endpoint->cad, endpoint->base_wid, 0,
	      SET_CONVERTER_FORMAT, tmp);
  corb_write (mixer, endpoint->cad, endpoint->base_wid, 0, SET_CONVERTER,
	      stream_number << 4);

  if (channels > 2)
    {

Set up the converters for the other stereo pairs

#if 1
      // TODO: Test this

      int n = (channels + 1) / 2;

      for (i = 1; i < n; i++)
	{
	  hdaudio_endpointinfo_t *ep;
	  ep = &endpoint[i];

	  corb_write (mixer, ep->cad, ep->base_wid, 0, SET_CONVERTER_FORMAT,
		      tmp);
	  corb_write (mixer, ep->cad, ep->base_wid, 0, SET_CONVERTER,
		      (stream_number << 4) | (i * 2));
	}
#endif
    }

  if (mixer->codecs[endpoint->cad]->vendor_flags & VF_VAIO_HACK)
    {

STAC9872 specific hack. In Sony VAIO configurations, the DAC widget used for the headphone jack needs to duplicate the stream playing on the DAC widget for the speaker when not in multichannel mode.

      if (channels <= 2 && endpoint->base_wid == 0x05)
	{
	  corb_write (mixer, endpoint->cad, 0x02, 0, SET_CONVERTER_FORMAT,
		      tmp);
	  corb_write (mixer, endpoint->cad, 0x02, 0, SET_CONVERTER,
		      stream_number << 4);
	}
    }

#if 1
  if (mixer->codecs[endpoint->cad]->vendor_flags & VF_ALC88X_HACK)
    {

ALC88x specfic hack. These codecs cannot play S/PDIF unless the front DAC widget is playing the same stream.

Analog front output (widget 0x14) will be automatically muted.

      if (endpoint->is_digital)
	{
	  unsigned int v, b;

	  hdaudio_codec_setup_endpoint (mixer, &mixer->outendpoints[0], rate,
					channels, fmt, stream_number, &tmp);

	  if (fmt == AFMT_AC3)
	    if (corb_read
		(mixer, endpoint->cad, 0x14, 0, GET_GAIN (1, 0), 0, &v, &b))
	      {
		endpoint->auto_muted = !(v & 0x80);

		v |= 0x80;	/* Mute */
		corb_write (mixer, endpoint->cad, 0x14, 0,
			    SET_GAIN (1, 0, 1, 1, 0), v);
	      }
	}
    }
#endif

  return 0;
}

int
hdaudio_codec_reset_endpoint (hdaudio_mixer_t * mixer,
			      hdaudio_endpointinfo_t * endpoint, int channels)
{

  int i;
  unsigned int v, b;
  int n = (channels + 1) / 2;


Set all converters to play stream iddle stream (usually 0=silence).


  corb_write (mixer, endpoint->cad, endpoint->base_wid, 0, SET_CONVERTER,
	      endpoint->iddle_stream << 4);

#if 1
  // TODO: Test this
  if (channels > 2)
    for (i = 1; i < n; i++)
      {
	hdaudio_endpointinfo_t *ep;

	ep = &endpoint[i];

	corb_write (mixer, ep->cad, ep->base_wid, 0, SET_CONVERTER,
		    ep->iddle_stream << 4);
      }
#endif

  if (mixer->codecs[endpoint->cad]->vendor_flags & VF_VAIO_HACK)
    /* Also set headphone DAC to play the iddle stream */
    if (channels <= 2 && endpoint->base_wid == 0x05)
      {
	corb_write (mixer, endpoint->cad, 0x02, 0, SET_CONVERTER,
		    endpoint->iddle_stream << 4);
      }

  if (mixer->codecs[endpoint->cad]->vendor_flags & VF_ALC88X_HACK)
    if (endpoint->is_digital && endpoint->auto_muted)	/* Restore automatic analog mute back to normal */
      {
	if (corb_read
	    (mixer, endpoint->cad, 0x14, 0, GET_GAIN (1, 0), 0, &v, &b))
	  {
	    v &= ~0x80;		/* Unmute */
	    corb_write (mixer, endpoint->cad, 0x14, 0,
			SET_GAIN (1, 0, 1, 1, 0), v);
	    endpoint->auto_muted = 0;
	  }
      }

  return 0;
}

/*ARGSUSED*/
void
hda_codec_unsol (hdaudio_mixer_t * mixer, unsigned int upper,
		 unsigned int lower)
{
  DDB (cmn_err (CE_CONT, "Unsol event %08x %08x\n", upper, lower));
}

int
hda_codec_getname (hdaudio_mixer_t * mixer, hda_name_t * name)
{
  widget_t *widget;

  if (name->cad >= mixer->ncodecs)
    return OSS_EIO;
  if (mixer->codecs[name->cad] == &NULL_codec)
    return OSS_EIO;
#if 1
  if (name->wid >= mixer->codecs[name->cad]->nwidgets)
    return OSS_EIO;
#endif

  widget = &mixer->codecs[name->cad]->widgets[name->wid];
  strcpy (name->name, widget->name);

  return 0;
}

int
hda_codec_getwidget (hdaudio_mixer_t * mixer, hda_widget_info_t * info)
{
  widget_t *widget;

  if (info->cad >= mixer->ncodecs)
    return OSS_EIO;
  if (mixer->codecs[info->cad] == &NULL_codec)
    return OSS_EIO;

  widget = &mixer->codecs[info->cad]->widgets[info->wid];
  if (info->wid >= mixer->codecs[info->cad]->nwidgets)
     return OSS_EIO;
  if (widget == NULL)
     return OSS_EIO;
  memcpy (info->info, widget, sizeof (*widget));

  return 0;
}

int
hdaudio_codec_audio_ioctl (hdaudio_mixer_t * mixer,
			   hdaudio_endpointinfo_t * endpoint,
			   unsigned int cmd, ioctl_arg arg)
{
  //widget_t *base_widget = &mixer->codecs[endpoint->cad]->widgets[endpoint->base_wid];
  widget_t *recsrc_widget =
    &mixer->codecs[endpoint->cad]->widgets[endpoint->recsrc_wid];
  widget_t *volume_widget =
    &mixer->codecs[endpoint->cad]->widgets[endpoint->volume_wid];
  char tmp[128], *t;
  unsigned int linked_wid, a, b;
  int i, v, left, right;
  int nsteps;

  if (mixer->codecs[endpoint->cad]->vendor_flags & VF_VAIO_HACK)
    linked_wid = (endpoint->volume_wid == 0x02) ? 0x05 :
		  ((endpoint->volume_wid == 0x05) ? 0x02 : 0);
  else 
    linked_wid = 0;

  switch (cmd)
    {
    case SNDCTL_DSP_GET_RECSRC_NAMES:
      *tmp = 0;
      t = tmp;

      for (i = 0; i < recsrc_widget->nconn; i++)
	{
	  if (*tmp)		/* Not empty */
	    *t++ = ' ';
	  strcpy (t,
		  mixer->codecs[recsrc_widget->cad]->widgets[recsrc_widget->
							     connections[i]].
		  name);
	  t += strlen (t);
	}
      return oss_encode_enum ((oss_mixer_enuminfo *) arg, tmp, 0);
      break;

    case SNDCTL_DSP_GET_RECSRC:
      if (!corb_read
	  (mixer, recsrc_widget->cad, recsrc_widget->wid, 0, GET_SELECTOR, 0,
	   &a, &b))
	return OSS_EIO;
      return *arg = a;
      break;

    case SNDCTL_DSP_SET_RECSRC:
      a = *arg;
      if (a > recsrc_widget->nconn)
	return OSS_EIO;

      corb_write (mixer, recsrc_widget->cad, recsrc_widget->wid, 0,
		  SET_SELECTOR, a);
      recsrc_widget->current_selector = a;
      mixer_devs[mixer->mixer_dev]->modify_counter++;
      return *arg = a;
      break;

    case SNDCTL_DSP_GETRECVOL:
      nsteps = (volume_widget->inamp_caps >> 8) & 0x3f;
      if (nsteps < 1)
	nsteps = 1;
      if (!corb_read
	  (mixer, volume_widget->cad, volume_widget->wid, 0, GET_GAIN (0, 1),
	   0, &a, &b))
	return OSS_EIO;
      if (a & 0x80)		/* Muted */
	left = 0;
      else
	left = ((a & 0x7f) * 100) / nsteps;
      if (!corb_read
	  (mixer, volume_widget->cad, volume_widget->wid, 0, GET_GAIN (0, 0),
	   0, &a, &b))
	return OSS_EIO;
      if (a & 0x80)		/* Muted */
	right = 0;
      else
	right = ((a & 0x7f) * 100) / nsteps;
      v = left | (right << 8);
      return *arg = v;
      break;

    case SNDCTL_DSP_SETRECVOL:
      v = *arg;

      left = v & 0xff;
      right = (v >> 8) & 0xff;

      if (left < 0)
	left = 0;
      if (left > 100)
	left = 100;
      if (right < 0)
	right = 0;
      if (right > 100)
	right = 100;
      v = left | (right << 8);

      nsteps = (volume_widget->inamp_caps >> 8) & 0x3f;
      if (nsteps < 1)
	nsteps = 1;

      a = (left * nsteps) / 100;
      if (left == 0)
	a |= 0x80;		/* Mute */
      corb_write (mixer, volume_widget->cad, volume_widget->wid, 0,
		  SET_GAIN (0, 1, 1, 0, 0), a);
      a = (right * nsteps) / 100;
      if (right == 0)
	a |= 0x80;		/* Mute */
      corb_write (mixer, volume_widget->cad, volume_widget->wid, 0,
		  SET_GAIN (0, 1, 0, 1, 0), a);

      mixer_devs[mixer->mixer_dev]->modify_counter++;
      return *arg = v;
      break;

    case SNDCTL_DSP_GETPLAYVOL:
      nsteps = (volume_widget->outamp_caps >> 8) & 0x3f;
      if (nsteps < 1)
	nsteps = 1;
      if (!corb_read
	  (mixer, volume_widget->cad, volume_widget->wid, 0, GET_GAIN (1, 1),
	   0, &a, &b))
	return OSS_EIO;
      if (a & 0x80)		/* Muted */
	left = 0;
      else
	left = ((a & 0x7f) * 100) / nsteps;
      if (!corb_read
	  (mixer, volume_widget->cad, volume_widget->wid, 0, GET_GAIN (1, 0),
	   0, &a, &b))
	return OSS_EIO;
      if (a & 0x80)		/* Muted */
	right = 0;
      else
	right = ((a & 0x7f) * 100) / nsteps;
      v = left | (right << 8);
      return *arg = v;
      break;

    case SNDCTL_DSP_SETPLAYVOL:
      v = *arg;

      left = v & 0xff;
      right = (v >> 8) & 0xff;

      if (left < 0)
	left = 0;
      if (left > 100)
	left = 100;
      if (right < 0)
	right = 0;
      if (right > 100)
	right = 100;
      v = left | (right << 8);

      nsteps = (volume_widget->outamp_caps >> 8) & 0x3f;
      if (nsteps < 1)
	nsteps = 1;

      a = (left * nsteps) / 100;
      if (left == 0)
	a |= 0x80;		/* Mute */
      corb_write (mixer, volume_widget->cad, volume_widget->wid, 0,
		  SET_GAIN (1, 0, 1, 0, 0), a);
      if (linked_wid)
	 corb_write (mixer, volume_widget->cad, linked_wid, 0,
		     SET_GAIN (1, 0, 1, 0, 0), a);
      a = (right * nsteps) / 100;
      if (right == 0)
	a |= 0x80;		/* Mute */
      corb_write (mixer, volume_widget->cad, volume_widget->wid, 0,
		  SET_GAIN (1, 0, 0, 1, 1), a);
      if (linked_wid)
	 corb_write (mixer, volume_widget->cad, linked_wid, 0,
		     SET_GAIN (1, 0, 0, 1, 1), a);

      mixer_devs[mixer->mixer_dev]->modify_counter++;
      return *arg = v;
      break;

    case SNDCTL_DSP_MODEM_OFFHOOK:
      if (!endpoint->is_modem)
        {
          return OSS_EINVAL;
        }
      v = *arg;
      if (mixer->codecs[endpoint->cad]->vendor_flags & VF_SI3055_HACK)
        {
          v = hdaudio_si3055_set_offhook(mixer, endpoint->cad, v);
        }
      else
        {
          return OSS_ENOTSUP;
        }
      return *arg = v;
      break;
    }

  return OSS_EINVAL;
}


Support routines for dedicated mixer drivers


void
hda_codec_add_group (int dev, hdaudio_mixer_t * mixer, int cad, int *group,
		     int parent_group, const char *name)
{
  int grp;

  if ((grp = mixer_ext_create_group (dev, parent_group, name)) > 0)
    *group = grp;
}

int
hda_codec_add_pingroup (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
			int *group, int top_group, int *parent_group,
			const char *name, int *n, const char *parent_name,
			int group_size)
{
  int grp;
  widget_t *widget;
  codec_t *codec;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];
  if (widget->used || widget->skip)
    return 0;

  if (group_size <= 1 || ((*n % group_size) == 0 && *n > 0))
    {
      if ((grp = mixer_ext_create_group (dev, top_group, parent_name)) > 0)
	*parent_group = grp;
      *n = 0;
    }

  if ((grp = mixer_ext_create_group (dev, *parent_group, name)) > 0)
    *group = grp;
  (*n)++;

  return 1;
}

int
hda_codec_add_adcgroup (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
			int *group, int top_group, int *parent_group,
			const char *name, int *n, const char *parent_name,
			int group_size)
{
  int grp;
  widget_t *widget;
  codec_t *codec;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];
  if (widget->used || widget->skip)
    return 0;

  if (group_size <= 1 || ((*n % group_size) == 0 && *n > 0))
    {
      if ((grp = mixer_ext_create_group (dev, top_group, parent_name)) > 0)
	*parent_group = grp;
      *n = 0;
    }

  if ((grp = mixer_ext_create_group (dev, *parent_group, name)) > 0)
    *group = grp;
  (*n)++;

  return 1;
}

int
hda_codec_add_miscgroup (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
			 int *group, int top_group, int *parent_group,
			 const char *name, int *n, const char *parent_name,
			 int group_size)
{
  int grp;
  widget_t *widget;
  codec_t *codec;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];
  if (widget->used || widget->skip)
    return 0;

  if (group_size <= 1 || ((*n % group_size) == 0 && *n > 0))
    {
      if ((grp = mixer_ext_create_group (dev, top_group, parent_name)) > 0)
	*parent_group = grp;
      *n = 0;
    }

  if ((grp = mixer_ext_create_group (dev, *parent_group, name)) > 0)
    *group = grp;
  (*n)++;

  return 1;
}

int
create_outgain_selector (hdaudio_mixer_t * mixer, widget_t * widget,
			 int group, const char *name)
{
  int num = MIXNUM (widget, CT_OUTGAINSEL, 0);
  int ctl, i;
  int maxval;
  int offs, step, range;
  oss_mixext *ent;

  char tmp[128], *t;

  range =
    ((widget->outamp_caps >> AMPCAP_NUMSTEPS_SHIFT) & AMPCAP_NUMSTEPS_MASK) +
    1;
  step =
    ((widget->outamp_caps >> AMPCAP_STEPSIZE_SHIFT) & AMPCAP_STEPSIZE_MASK) +
    1;
  offs = (widget->outamp_caps >> AMPCAP_OFFSET_SHIFT) & AMPCAP_OFFSET_MASK;

  maxval = range;

  if (widget->outamp_caps & AMPCAP_MUTE)
    maxval += 1;

  if ((ctl = mixer_ext_create_control (mixer->mixer_dev,
				       group,
				       num, hdaudio_set_control,
				       MIXT_ENUM,
				       name, maxval,
				       MIXF_READABLE | MIXF_WRITEABLE)) < 0)
    return ctl;

  t = tmp;
  *t = 0;

  for (i = 0; i < range; i++)
    {
      int v;

      v = (i - offs) * step * 4;

      if (*tmp != 0)
	*t++ = ' ';

      sprintf (t, "%d.%ddB", v / 10, v % 10);
      t += strlen (t);
    }

  if (widget->outamp_caps & AMPCAP_MUTE)
    {
      if (*tmp != 0)
	*t++ = ' ';
      strcpy (t, "mute");
      t += strlen (t);
    }

  mixer_ext_set_strings (mixer->mixer_dev, ctl, tmp, 0);
  /* Copy RGB color */
  if (widget->rgbcolor != 0)
      if ((ent = mixer_find_ext (mixer->mixer_dev, ctl)) != NULL)
	 ent->rgbcolor = widget->rgbcolor;

  return 0;
}

int
create_ingain_selector (hdaudio_mixer_t * mixer, codec_t * codec,
			widget_t * widget, int group, int ix,
			const char *name)
{
  int num = MIXNUM (widget, CT_INGAINSEL, ix);

  int ctl, i;
  int maxval;
  int offs, step, range;
  oss_mixext *ent;

  char tmp[128], *t;

  range =
    ((widget->inamp_caps >> AMPCAP_NUMSTEPS_SHIFT) & AMPCAP_NUMSTEPS_MASK) +
    1;
  step =
    ((widget->inamp_caps >> AMPCAP_STEPSIZE_SHIFT) & AMPCAP_STEPSIZE_MASK) +
    1;
  offs = (widget->inamp_caps >> AMPCAP_OFFSET_SHIFT) & AMPCAP_OFFSET_MASK;

  maxval = range;

  if (widget->inamp_caps & AMPCAP_MUTE)
    maxval += 1;

  if ((ctl = mixer_ext_create_control (mixer->mixer_dev,
				       group,
				       num, hdaudio_set_control,
				       MIXT_ENUM,
				       name, maxval,
				       MIXF_READABLE | MIXF_WRITEABLE)) < 0)
    return ctl;

  t = tmp;
  *t = 0;

  for (i = 0; i < range; i++)
    {
      int v;

      v = (i - offs) * step * 4;

      if (*tmp != 0)
	*t++ = ' ';

      sprintf (t, "%d.%ddB", v / 10, v % 10);
      t += strlen (t);
    }

  if (widget->inamp_caps & AMPCAP_MUTE)
    {
      if (*tmp != 0)
	*t++ = ' ';
      strcpy (t, "mute");
      t += strlen (t);
    }

  mixer_ext_set_strings (mixer->mixer_dev, ctl, tmp, 0);
  /* Copy RGB color */
  if (widget->color != 0)
     if ((ent = mixer_find_ext (mixer->mixer_dev, ctl)) != NULL)
	 ent->rgbcolor = widget->rgbcolor;
  return 0;
}

int
hda_codec_add_outamp (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
		      int group, const char *name, int percent,
		      unsigned int flags)
{
  widget_t *widget;
  codec_t *codec;
  int typ, num, maxval, val, ctl = 0;
  int range, step;
  oss_mixext *ent;
  extern int mixer_muted;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];

  range =
    ((widget->
      outamp_caps >> AMPCAP_NUMSTEPS_SHIFT) & AMPCAP_NUMSTEPS_MASK) + 1;
  step =
    ((widget->
      outamp_caps >> AMPCAP_STEPSIZE_SHIFT) & AMPCAP_STEPSIZE_MASK) + 1;

  if (step > 20 /* 5dB */  && range < 5)
    {
      create_outgain_selector (mixer, widget, group, name);
    }
  else
    {

      maxval = hdaudio_amp_maxval (widget->outamp_caps);

      if (widget->widget_caps & WCAP_STEREO)
	{
	  typ = MIXT_STEREOSLIDER16;
	  num = MIXNUM (widget, CT_OUTSTEREO, 0);
	}
      else
	{
	  typ = MIXT_MONOSLIDER16;
	  num = MIXNUM (widget, CT_OUTMONO, 0);
	}

      if ((ctl = mixer_ext_create_control (mixer->mixer_dev,
					   group,
					   num, hdaudio_set_control,
					   typ,
					   name, maxval,
					   flags | MIXF_READABLE |
					   MIXF_WRITEABLE |
					   MIXF_CENTIBEL)) < 0)
	return ctl;

      /* setup volume */
      val = (maxval * percent) / 100;
      val = val | (val << 16);
      if (mixer_muted)
	 val = 0;
      /* Copy RGB color */
      if (widget->rgbcolor != 0)
      if ((ent = mixer_find_ext (dev, ctl)) != NULL)
	 ent->rgbcolor = widget->rgbcolor;
      hdaudio_set_control (mixer->mixer_dev, num, SNDCTL_MIX_WRITE, val);
    }

  return ctl;
}

int
hda_codec_add_outmute (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
		       int group, const char *name, int muted)
{
  widget_t *widget;
  codec_t *codec;
  int ctl = 0;
  oss_mixext *ent;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];

  if (widget->outamp_caps & AMPCAP_MUTE)	/* Only mute control */
    {
      // name = "mute";

      if ((ctl = mixer_ext_create_control (mixer->mixer_dev,
					   group,
					   MIXNUM (widget,
						   CT_OUTMUTE, 0),
					   hdaudio_set_control,
					   MIXT_MUTE, name, 2,
					   MIXF_READABLE |
					   MIXF_WRITEABLE)) < 0)
	return ctl;
      /* Copy RGB color */
      if (widget->rgbcolor != 0)
      if ((ent = mixer_find_ext (dev, ctl)) != NULL)
	 ent->rgbcolor = widget->rgbcolor;

      hdaudio_set_control (mixer->mixer_dev,
			   MIXNUM (widget, CT_OUTMUTE, 0),
			   SNDCTL_MIX_WRITE, muted);
      return ctl;
    }
  return 0;
}

int
hda_codec_add_inamp (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
		     int ix, int group, const char *name, int percent, int flags)
{
  widget_t *widget;
  widget_t *src_widget;
  codec_t *codec;
  int typ, num, maxval, val, ctl = 0, range, step;
  oss_mixext *ent;
  extern int mixer_muted;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];

  range =
    ((widget->
      outamp_caps >> AMPCAP_NUMSTEPS_SHIFT) & AMPCAP_NUMSTEPS_MASK) + 1;
  step =
    ((widget->
      outamp_caps >> AMPCAP_STEPSIZE_SHIFT) & AMPCAP_STEPSIZE_MASK) + 1;

  if (step > 20 /* 5dB */  && range < 5)
    {
      return create_ingain_selector (mixer, codec, widget, group, ix, name);
    }
  maxval = hdaudio_amp_maxval (widget->inamp_caps);

  if (widget->widget_caps & WCAP_STEREO)
    {
      typ = MIXT_STEREOSLIDER16;
      num = MIXNUM (widget, CT_INSTEREO, ix);
    }
  else
    {
      typ = MIXT_MONOSLIDER16;
      num = MIXNUM (widget, CT_INMONO, ix);
    }

  if (codec->widgets[widget->connections[ix]].skip)
    {
      hdaudio_set_control (mixer->mixer_dev, num, SNDCTL_MIX_WRITE, 0);
      return 0;
    }

  if ((ctl = mixer_ext_create_control (mixer->mixer_dev,
				       group,
				       num,
				       hdaudio_set_control,
				       typ,
				       name, maxval,
				       MIXF_READABLE |
				       MIXF_WRITEABLE | MIXF_CENTIBEL | flags)) < 0)
    return ctl;

  /* Setup initial volume */
  val = (maxval * percent) / 100;
  val = val | (val << 16);
  if (mixer_muted)
     val = 0;

  hdaudio_set_control (mixer->mixer_dev, num, SNDCTL_MIX_WRITE, val);

  /* Copy RGB color */
  src_widget = &codec->widgets[widget->connections[ix]];
  if (src_widget->rgbcolor != 0)
      if ((ent = mixer_find_ext (dev, ctl)) != NULL)
	 ent->rgbcolor = src_widget->rgbcolor;

  return ctl;
}

int
hda_codec_add_inmute (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
		      int ix, int group, const char *name, int muted, unsigned int flags)
{
  widget_t *widget;
  codec_t *codec;
  oss_mixext *ent;
  int ctl = 0;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];

  if (codec->widgets[widget->connections[ix]].skip)
    {
      int num = MIXNUM (widget, CT_INMUTE, ix);
      hdaudio_set_control (mixer->mixer_dev, num, SNDCTL_MIX_WRITE, 1);
      return 0;
    }

  if ((ctl = mixer_ext_create_control (mixer->mixer_dev,
				       group,
				       MIXNUM (widget,
					       CT_INMUTE, ix),
				       hdaudio_set_control,
				       MIXT_MUTE, name, 2,
				       flags | MIXF_READABLE | MIXF_WRITEABLE)) < 0)
    return ctl;
  /* Copy RGB color */
  if (widget->rgbcolor != 0)
      if ((ent = mixer_find_ext (dev, ctl)) != NULL)
	 ent->rgbcolor = widget->rgbcolor;

  hdaudio_set_control (mixer->mixer_dev,
		       MIXNUM (widget, CT_INMUTE, ix),
		       SNDCTL_MIX_WRITE, muted);
  return ctl;
}

int
hda_codec_set_inmute (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
		      int ix, int group, const char *name, int muted)
{
  widget_t *widget;
  codec_t *codec;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];

// cmn_err(CE_CONT, "Set inmute 0x%02x:%d=%d\n", wid, ix, muted);
  return hdaudio_set_control (mixer->mixer_dev,
			      MIXNUM (widget, CT_INMUTE, ix),
			      SNDCTL_MIX_WRITE, muted);
}

int
hda_codec_add_insrc (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
		     int ix, int group, const char *name, int unselected)
{
  widget_t *widget;
  codec_t *codec;
  oss_mixext *ent;
  int ctl = 0;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];

  if (codec->widgets[widget->connections[ix]].skip)
    {
      int num = MIXNUM (widget, CT_INMUTE, ix);

      hdaudio_set_control (mixer->mixer_dev, num, SNDCTL_MIX_WRITE, 1);
      return 0;
    }

  if ((ctl = mixer_ext_create_control (mixer->mixer_dev,
				       group,
				       MIXNUM (widget,
					       CT_INSRC, ix),
				       hdaudio_set_control,
				       MIXT_ONOFF, name, 2,
				       MIXF_READABLE | MIXF_WRITEABLE)) < 0)
    return ctl;
  /* Copy RGB color */
  if (widget->rgbcolor != 0)
     if ((ent = mixer_find_ext (dev, ctl)) != NULL)
	 ent->rgbcolor = widget->rgbcolor;

  hdaudio_set_control (mixer->mixer_dev,
		       MIXNUM (widget, CT_INSRC, ix),
		       SNDCTL_MIX_WRITE, unselected);
  return ctl;
}

int
hda_codec_add_insrcselect (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
			   int group, int *ctl, const char *name,
			   int initial_selection)
{
  widget_t *widget;
  codec_t *codec;
  int i;
  oss_mixext *ext;

  *ctl = 0;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];

  if ((*ctl = mixer_ext_create_control (mixer->mixer_dev,
					group,
					MIXNUM (widget,
						CT_INSRCSELECT, 0),
					hdaudio_set_control,
					MIXT_ENUM, name, widget->nconn,
					MIXF_READABLE | MIXF_WRITEABLE)) < 0)
    return 0;

  ext = mixer_find_ext (mixer->mixer_dev, *ctl);
  if (ext == NULL)
    {
      cmn_err (CE_WARN, "Cannot locate the mixer extension (x)\n");
      return OSS_EIO;
    }

  /* Copy RGB color */
  if (widget->color != 0)
     ext->rgbcolor = widget->rgbcolor;

  memset (ext->enum_present, 0, sizeof (ext->enum_present));

  for (i = 0; i < widget->nconn; i++)
    {


ensure that the connection list has a valid widget id - some devices have bogus connection lists

      if (codec->widgets[widget->connections[i]].wid < codec->first_node)
	continue;


Show only widgets that are not marked to be ignored. Also hide I/O pins that are known to be outputs.

      if (!codec->widgets[widget->connections[i]].skip
	  && codec->widgets[widget->connections[i]].sensed_pin != PIN_OUT)
	ext->enum_present[i / 8] |= (1 << (i % 8));
    }

  hdaudio_set_control (mixer->mixer_dev,
		       MIXNUM (widget, CT_INSRCSELECT, 0),
		       SNDCTL_MIX_WRITE, initial_selection);
  return 1;
}

int
hda_codec_add_select (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
		      int group, const char *name, int *ctl,
		      int initial_select)
{
  widget_t *widget;
  codec_t *codec;
  oss_mixext *ext;
  int i;

  *ctl = 0;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];

  if ((*ctl = mixer_ext_create_control (mixer->mixer_dev,
					group,
					MIXNUM (widget, CT_SELECT, 0),
					hdaudio_set_control,
					MIXT_ENUM,
					name,
					widget->nconn,
					MIXF_READABLE | MIXF_WRITEABLE)) < 0)
    return *ctl;

  ext = mixer_find_ext (mixer->mixer_dev, *ctl);

  if (ext == NULL)
    {
      cmn_err (CE_WARN, "Cannot locate the mixer extension (x)\n");
      return OSS_EIO;
    }
  /* Copy RGB color */
  if (widget->color != 0)
     ext->rgbcolor = widget->rgbcolor;

  memset (ext->enum_present, 0, sizeof (ext->enum_present));

  for (i = 0; i < widget->nconn; i++)
    {


ensure that the connection list has a valid widget id - some devices have bogus connection lists

      if (codec->widgets[widget->connections[i]].wid < codec->first_node)
	continue;


Show only widgets that are not marked to be ignored. Also hide I/O pins that are known to be outputs.

      if (!codec->widgets[widget->connections[i]].skip
	  && codec->widgets[widget->connections[i]].sensed_pin != PIN_OUT)
	ext->enum_present[i / 8] |= (1 << (i % 8));
    }

  if (initial_select > -1)
    widget->current_selector = initial_select;

  if (widget->current_selector >= widget->nconn)
    widget->current_selector = 0;
  corb_write (mixer, widget->cad, widget->wid, 0, SET_SELECTOR,
	      widget->current_selector);

  return *ctl;
}

int
hda_codec_add_pinselect (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
			 int group, const char *name, int *ctl,
			 int initial_select)
{
  widget_t *widget;
  codec_t *codec;
  unsigned int conf, b;
  oss_mixext *ext;
  int i;

  *ctl = 0;

  if (cad < 0 || cad >= mixer->ncodecs)
    return OSS_ENXIO;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return OSS_ENXIO;

  widget = &codec->widgets[wid];

  if ((*ctl = mixer_ext_create_control (mixer->mixer_dev,
					group,
					MIXNUM (widget, CT_SELECT, 0),
					hdaudio_set_control,
					MIXT_ENUM,
					name,
					widget->nconn + 1,
					MIXF_READABLE | MIXF_WRITEABLE)) < 0)
    return *ctl;

  ext = mixer_find_ext (mixer->mixer_dev, *ctl);

  if (ext == NULL)
    {
      cmn_err (CE_WARN, "Cannot locate the mixer extension (x)\n");
      return OSS_EIO;
    }

  /* Copy RGB color */
  if (widget->color != 0)
     ext->rgbcolor = widget->rgbcolor;
  memset (ext->enum_present, 0, sizeof (ext->enum_present));

  for (i = 0; i < widget->nconn; i++)
    {


ensure that the connection list has a valid widget id - some devices have bogus connection lists

      if (codec->widgets[widget->connections[i]].wid < codec->first_node)
	continue;


Show only widgets that are not marked to be ignored. Also hide I/O pins that are known to be outputs.

      if (!codec->widgets[widget->connections[i]].skip
	  && codec->widgets[widget->connections[i]].sensed_pin != PIN_OUT)
	ext->enum_present[i / 8] |= (1 << (i % 8));
    }


Enable the input selection (if available)

  i = widget->nconn;
  if (widget->pincaps & PINCAP_INPUT_CAPABLE)
    ext->enum_present[i / 8] |= (1 << (i % 8));


Set the initial value.

Use the default sequence as an index to the output source selectors.

  if (widget->sensed_pin == PIN_OUT)
    {
      if (corb_read
	  (mixer, widget->cad, widget->wid, 0, GET_CONFIG_DEFAULT, 0, &conf,
	   &b))
	{
	  int association, sequence;

	  association = (conf >> 4) & 0x0f;
	  sequence = conf & 0x0f;

	  if (association != 0)
	    {
	      widget->current_selector = sequence;
	    }

	}
    }
  else if (widget->sensed_pin == PIN_IN || widget->sensed_pin == PIN_MIC)
    widget->current_selector = widget->nconn;	/* Turn on input mode */

  if (initial_select > -1)
    widget->current_selector = initial_select;

  if (widget->current_selector < 0
      || widget->current_selector >= widget->nconn + 1)
    widget->current_selector = 0;

  if (widget->current_selector < widget->nconn)
    {
      /* Output source select */
      corb_write (mixer, cad, wid, 0, SET_SELECTOR, widget->current_selector);
      /* Enable output and HP amp. Set vref=Ground */
      corb_write (mixer, cad, wid, 0, SET_PINCTL, 0xc0);
    }
  else
    {

Program the correct VRef Values


      if (widget->pin_type == PIN_IN)	/* Line-in */
	{
	  corb_write (mixer, cad, wid, 0, SET_PINCTL, 0x20);	/*Ground*/
	}
      else		/* Mic-in */
	{

0%

	}
    }

  return *ctl;
}

void
hda_codec_set_select (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
		      int value)
{
  codec_t *codec;
  widget_t *widget;

  if (cad < 0 || cad >= mixer->ncodecs)
    return;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return;

  widget = &codec->widgets[wid];

  widget->current_selector = value;

  corb_write (mixer, cad, wid, 0, SET_SELECTOR, value);
}

void
hda_codec_set_pinselect (int dev, hdaudio_mixer_t * mixer, int cad, int wid,
		      int value)
{
  codec_t *codec;
  widget_t *widget;

  if (cad < 0 || cad >= mixer->ncodecs)
    return;
  codec = mixer->codecs[cad];

  if (wid < 0 || wid >= codec->nwidgets)
    return;

  widget = &codec->widgets[wid];

  widget->current_selector = value;

  if (widget->current_selector < widget->nconn)
    {
      /* Output source select */
      corb_write (mixer, cad, wid, 0, SET_SELECTOR, widget->current_selector);
      /* Enable output and HP amp. Set vref=Ground */
      corb_write (mixer, cad, wid, 0, SET_PINCTL, 0xc0);
    }
  else
    {

Program the correct VRef Values


      if (widget->pin_type == PIN_IN)	/* Line-in */
	{
	  corb_write (mixer, cad, wid, 0, SET_PINCTL, 0x20);	/*Ground*/
	}
      else		/* Mic-in */
	{

0%

	}
    }
}

int
hda_codec_add_choices (int dev, hdaudio_mixer_t * mixer, int ctl,
		       const char *choiselist)
{
  mixer_ext_set_strings (dev, ctl, choiselist, 0);

  return 0;
}

void
hda_codec_set_color(int dev, hdaudio_mixer_t *mixer, int ctl, int color)
{
  oss_mixext *ext;

  if ((ext = mixer_find_ext (mixer->mixer_dev, ctl)) != NULL)
  {
     ext->rgbcolor = color;
//cmn_err(CE_CONT, "Mixer %s rgb->%06x\n", ext->extname, ext->rgbcolor);
  }
}

Copyright (C) 4Front Technologies, 2007. All rights reserved.

Back to index OSS web site


Copyright (C) 4Front Technologies, 2007. All rights reserved.
Back to index OSS web site